2.1 implies that, for a resistor with constant resistance, the current Here we will discuss how we can do an easy experiment to verify Ohm’s law. endobj Insert the key K and slide the rheostat contact to see whether the ammeter and voltmeter are showing deflections properly. 5 0 obj ߏƿ'� Zk�!� \$l\$T����4Q��Ot"�y�\b)���A�I&N�I�\$R\$)���TIj"]&=&�!��:dGrY@^O�\$� _%�?P�(&OJEB�N9J�@y@yC�R �n�X����ZO�D}J}/G�3���ɭ���k��{%O�חw�_.�'_!J����Q�@�S���V�F��=�IE���b�b�b�b��5�Q%�����O�@��%�!BӥyҸ�M�:�e�0G7��ӓ����� e%e[�(����R�0`�3R��������4�����6�i^��)��*n*|�"�f����LUo�՝�m�O�0j&jaj�j��.��ϧ�w�ϝ_4����갺�z��j���=���U�4�5�n�ɚ��4ǴhZ�Z�Z�^0����Tf%��9�����-�>�ݫ=�c��Xg�N��]�. endobj

Range of the given voltmeter = .....................V. Least count of the given voltmeter = .....................V. Mean value of V/I from observations, R = .......... Ω. R from graph = 1/ slope = .............. Ω. ��wN�#E/���i��Q�Ax��l�L:�ׇ������l��ˋG|�ͩ�����Tx:nL8|�g:n�5�ϘNk�sL�=�j1�he� j��XVA��u���ɳwr� ^���AL9�f��@��R(�2�v�ӡ6����y�a���9�������Ա���#�7,ގ86��;:_C�h?���\$�:G��~TNY��%�ö��vv�F��%�(r�}�}�㣼���?�}���>c%�,��C� 6�lg�� ��sv]9�����gY��9ENܔB�&��~�n�e+T���!k�E��mTW�z:��"�S�� �1./��Y\P�zp�LwmB[�e��W ɦ�^TE͑΁\����IYd@`�헐x�����Bb���X�XD�Afk�b��&�aG����[��t����8B{�5����壪c���3�6�. <> <> Equipment: rheostat, power source, ammeter, voltmeter, connecting wires Did you know? All connections must be neat and tight. %��������� ��J��a��GE9ಭ@���m���fW�-��on`��f�,v�zk��5)"� C���6L\X%e�Q�,-�� ���a�n����=�螟X��������ǯ�d.4��.bθ�� ��)�6^.�� A�LV X�������-\�k�_�xBC� �ؠ`w�l,a��?�陛���� z�L�I��T����Kt� Iob�'Rq���tk����M�]�ڳ�ooQ�+��H�4aF�QV�F�!

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Adjust the rheostat to pass a low current. Note carefully ammeter and voltmeter readings in each set and record in the. Ohm’s Law is named after George Simon Ohm a German physicist. 6 0 obj

;� 4�R�!��� �4ܜ��4M���Y���]�rt4:���]��.� -�i+�>1Pr'�80'���Q6����h�y�'� R49�A;�8�u�fXk�V�q�:��ʭ���4��m�5�s���a�ރ��6=�)=X &p�w(-(��%. stream �{x�� RFN�k�6=ak����)W�~�[�;Ag;~;=d\$��1G5ein��"txg�S��2I��2��ր����k}pzW������z����&;�P�Xn���D/�� Zƨ}��(i2������j��F�T�|�v1С����`����A�b@Q�sV�j�2�ז�#hdI� ���5` �R�K�m�L�B#�ڢ�^n� ���n���=Ar1qر���Q��7iL��s�R}��D�l�o��Of\Z��6�0�.Q|DK����GD]��9քb�kE(�,fT2�`Bu8 �����2�������Qk���=�pH"��B� �P v J�ǭP�����}�� p����`=%"������=%]'�5J!���QGHȔ\$ �1�:x��WA�� ���WB�&|y�5t�������;`o��ґ&��%����G��}9��J� C��h���:uf4ή� 䪸��Q; {�Cq���w,�:a�����t��h�&�SA �bN�I���t�s����0Đ�(�QZ� 0BPZ1>� �~\$ y�ld���2����3JZ]���-[�C(��rX;]�UG�CeC��?�����"��^�̪�ǁ���F���#S��ry��d:�YR ���7���4���Ie�L����� f�=��ka�!��� Y���Qc`�"���ki�!X{Xe�����b�;lV�YI�Āa.� ���Q^�M�BX�/2�T�� �\$�����4N�}�k|�XԘ���}@���e�7�[�2H��# Funded by MeitY (Ministry of Electronics & Information Technology), English Take atleast six sets of readings by adjusting the rheostat gradually. 4 0 obj endobj endobj <> endobj Simulator. <> << /Length 16 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> 22 0 obj

stream Determine the slope of the V-I graph. <> 18 0 obj Resistance of a material depends on its resistivity (ρ), length (L), cross-sectional area (A), and temperature (T). stream 24 0 obj In an experiment of verification of Ohm’s law following observations are obtained. �����Lt�����������U��`��/���%V�rN���dF^��1[����0�B�H!�9r��C,��3����~�sz�����n�s�y:u_VV�qpC�!�������Ћ�Aw�S�A �KI2*4�%"JO��K�]N�D1ԲXI�9� 1�/�v���?��i���w>N�p�~r�E�j+�O�6�id���ů�fZ�\rgB�� 3 0 obj हिंदी endstream endobj

Ohm's Law Ohm’s law relates the resistance of a component to its voltage and current. 23 0 obj 5 0 obj Make the connections as per circuit diagram. [7A�\�SwBOK/X/_�Q�>Q�����G�[��� �`�A�������a�a��c#����*�Z�;�8c�q��>�[&���I�I��MS���T`�ϴ�k�h&4�5�Ǣ��YY�F֠9�=�X���_,�,S-�,Y)YXm�����Ěk]c}ǆj�c�Φ�浭�-�v��};�]���N����"�&�1=�x����tv(��}�������'{'��I�ߝY�)� Σ��-r�q�r�.d.�_xp��Uە�Z���M׍�v�m���=����+K�G�ǔ����^���W�W����b�j�>:>�>�>�v��}/�a��v���������O8� � Arrange the apparatus as per the circuit diagram.

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Voltmeter and Ammeter must be of proper range. • Construct a circuit using resistors, wires and a breadboard from a circuit diagram.

7 0 obj �-^� �u�wf#u,�VF""�ߪ�& �c~�D�_Ч�^�;g�����E��o��������N�V�鑰qX�n�}Gݭp�"��˜�-�-�{���T�9�\$h�G�6#����ŋG���Y�V5�>��� ��ăx�������:%�ގ�n��� \���Iz���1�*���X�sϹ���|�U¯t����!E�F���g�&\zM�n���6YWt�q�¨؈1}!�+�&G�y�����>����'�2BU�pN��g�C��As����E�I*�DƓ (+ve to +ve and -ve to -ve). 15 0 obj Reference.

V = IR, (Here R = Constant for the given metallic wire) The SI unit of resistance is Ohm (Ω).

21 0 obj << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 612 792] stream V ∝ I.’. 10 0 obj endobj Clean the ends of the connecting wires with sand paper and make them shiny. Observation Experiment: Ohm’s Law Use the equipment provided to determine the relationship between current, potential difference, and resistance.

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While doing Ohm’s law experiment, a student observed that the pointer of the voltmeter coincides with 15th division, the observed reading is (a) 0.75 V (6) 0.075 V (c) 7.5 V (d).

%���� What we need: Four or five dry cells, a thin wire (AB), a voltmeter, an ammeter, a plug key and some thick connecting wires. E�6��S��2����)2�12� ��"�įl���+�ɘ�&�Y��4���Pޚ%ᣌ�\�%�g�|e�TI� ��(����L 0�_��&�l�2E�� ��9�r��9h� x�g��Ib�טi���f��S�b1+��M�xL����0��o�E%Ym�h�����Y��h����~S�=�z�U�&�ϞA��Y�l�/� �\$Z����U �m@��O� � �ޜ��l^���'���ls�k.+�7���oʿ�9�����V;�?�#I3eE妧�KD����d�����9i���,�����UQ� ��h��6'~�khu_ }�9P�I�o= C#\$n?z}�[1 29 0 obj x��[mo�8�^�����>\$�H�z�9�I��a��{w{�~Pl'ֶ|�����of�7J��Em���yyfH�]fEr�����eQ���r������g������!��E�n/.���+�z�����"'������\�_��+x�m^�p���}�����S1�O����TM�驜�5=�r�c����ϩ7I���?_���8EŕK�~͕��,n�l6�:9g�Q�#Y�;\$���� ����N��X�=�~��I��G�_J߈;���~��`7�;���|�����P�pC'T,�����^���멋S�����Յ�o|��{ �W�Ԋ_�

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yKi�o1?灑��-��l�隫y�K6�#eN��c~~�:0���xE{�{�j��BY����J��S����\$��-�6�\$���8��ɢ8yn%C̀�ۊ(6;kh��c�T�M� �ï=�i��}���~�9�G�Ѹ�2ĕ��o�O�v7�t�>g�c�~��\����S|�vzl�+̲�����%�A,2�d����rpP�!�b�7w������^�@�И:�S� ��!C�ܭ4�s��m`���_��a��(�y��Qz��I��A�V�-�&��w���=W�`R.�z��N�Y���bib�!d], endobj Determine the zero error and least count of the ammeter and voltmeter and record them. 13 0 obj He finally published the law in 1827 and generalized his observations in single statement: The current flowing through the resistor is directly proportional to the voltage applied across it. ٛdKG=EIV��4�ͪ�o^>��Y�(��������2��vU/���,s�!�:Zk|/��w�|�n�s;e��Z#��v�ae�ҽ��.��s}PR�E�b����Z\��6��.��f�N�s��w�yy�FG�'xyF�AxR�uU��&�>;�1 �w;�P�id��aU�L��"�!�U�;�jnlQ����U�+��\����_ǠD������� G�n�&FI�=�fӜ� hz]^F�E� /��p�˯19�6��vY&��.m�O��E��~�=T�>�B> *cx��;&�'��:����G`Dܮ�a�3`�U1�m?�)خl��:��2,�7��1t�&c(�� ÿc(���S������ ]Q�P�C}ba/+` ��Ái�s voltage and the current. �۹��Ql endobj /TT2.0 9 0 R /TT3.0 10 0 R /TT5.0 13 0 R /TT6.0 14 0 R /TT4.0 11 0 R /TT4.1
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<> Adjust the rheostat such that ammeter shows the low value of Current (.

)[J����[�&w/R�`w�npP-j�(�fv9�'jTC^��@ƞ ��"n^+�� �6�/B]T0W��.v9����Ev����.��\w ¦��q�3Ee�uUJgUe��WX���V�o��uV4�x!|�?I��p�Y��g�S���R�ذ_����?\s� v^öuQp�l����C|�{IJ�*7�h�o���Jt1{�O��R�-YZL;� ����u?=�&Y�Ht�vi��I�c�d�R�8A-Zr?�d�i0��,���!����������ؔ�a��9����ֆw�V҉F1��x.Z�frSn�(5x�Kc� <> The key should be inserted only while taking readings. endobj Ohm performed repeated experiments on a resistor, applied different voltages, measured current and found relationship between these quantities. 18 0 obj 16 0 obj x�J����^�yq�C���p�Q������kJ�ʯ/����\$�!H���b�doJa./Lu�����z�txh,vXy�co~����rd8��0������Q?��k`\$�\$W�#��˩��b�dK0�����~ �-�,/������HmV,T���@�2��Yn�� �z4Ú�5GC^%;v�,�P (a) 1.25V came and (b) 0.3 A came, (a) Potential difference is 1.25V when the current is 0.5A, Write a full laboratory experiment report on verification of ohms law, Draw a circuit diagram to show experimental set up for verification of Ohm’s law.

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