Academic year. Electric Current Exam1 and Problem Solutions 1. We use ohm's law to find relation between V, I and R. Interval I: Since potential and current increase linearly, resistance of the conductor becomes constant. Find the change in the resistance of conductor in first and third intervals. SOLUTIONS: PROBLEM SET 3 ELECTRIC CURRENT and DIRECT CURRENT CIRCUITS PART A: CONCEPTUAL QUESTIONS A. Electric Current and Circuits Example Problems with Solutions.pdf. In this problem Q = 2.0 x10-3C Time = 2.0 x10-3s Current = ? &�����3���.e{��`��. b. 1 Fall 2012 Physics 121 Practice Problem Solutions 05 Electric Potential Contents: 121P05 -7Q, 2P, 4P, 6P,13P, 14P, 28P • Electric Potential Energy versus Electric Potential • Calculating the Potential from the Field • Potential due to a Point Charge • EquipotentialSurfaces • Calculating the Field from the Potential • Potentials on, within, and near Conductors “crackles” when you take clothes off – this is due to buildup of charge on the garment stream %�쏢 2018/2019 Electric Current Problems Answers - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. <> 5 0 obj SOLUTIONS: PROBLEM SET 2 ELECTRIC POTENTIAL AND ELECTRIC POTENIAL ENERGY PART A: CONCEPTUAL QUESTIONS A. Solutions to ER1: Charge and Coulomb’s Law A. Qualitative Questions: 1. ����A�1�Zk|H�)���j�>��%��'>v����� � ��ZȚ�nL�`��4�`鸂�\9�;��P� � >��/_H��.��`��q5�����L���ل���L�s��e �SGCN�q=�q�.~��"�)GF(��LB�{���q`�� ��ԅh�m�� p0l9d�!�(p�� \E���#�g����#1�b M�1�{'U8������R�����h��F�>L�P�?�@��B���fq����ē{ �@���r%/օ��59� Electrons are free to move in a conductor. Course. %PDF-1.4 University. Voltage vs. current graph of a conductor is given below. If we connect them in series, R eq = 300Ω. x��X�nG`0,���C.��v���o���7�����-�b$��K9�s�]��M�HQ[6�luשSU�z����\c�{X�8]|�Cj���x���6�sZWQ~��༵,~|ڼ]P#��ߌ{9��ů����.�-�;1y����W}��/N�o���bc�Y��.2�RN͊��mC��9�جOKj׿b��� y������8����RK&�엗ە5)q�����������KDnym\���m"k�/?��_|��P �\Rh���L�ŏ`�F���� ���.���*�Xl��֛�����[`#��/o��-ު�D����l�����H.�,&��ʙdK"D'K�e�i5e�,p@)>��m@@�=����E��Գ������Qk�w�}>�ű`!�w�'�����=꠻Xa�����@� University of South Alabama. If there was a potential difference between two points, then an electric field must exist. 1 Problem: The discharge of the electric eel can transfer a charge of 2.0 mCin a time of 2.0 ms. What current, in A, does this correspond to? Y�']�e�����f�9�����8(���d���H�͵������l�"�.�ܬ_"�j����;��5��`�D�*VK�U�T|T�(O'[AO�����B�\i=�q����{gyYW�a�Շ��,��v�&&K4��.�OZ��xfA�a�[3�pޛ���0� W({i�i��_ Gr>>����E�^~�� �j�4բ�$�B6�J1��(�):�qZt�I�)0�ȫ��`-��9k��}M%�� Electric Current and Circuits Example Problems with Solutions. Solution: Step 1: To solve a problem, note each and every quantities mentioned in your problem. The following effects are fundamentally electrical in nature: a. tension in a spring – this is due to the distortion of bonds in the spring, which are electrical in nature. Caleb Smith. Physics 2 (PH 202L) Uploaded by.