15. An insulated charged conducting sphere of radius 5cm has potential of 10v at the surface . What is the potential at centre? 10V ZERO Same as that at 5cm from the surface Same as that at 25cm from the surface
1. using Kirchhoff law find the current in following branch answer AB:(5/8) A, CA: (5/2) A, DEB: (15/8) A AD: (15/8) A, CD: 0 A, BC: (5/2) A 2. using Kirchhoff law find the current in following branch Answer current in branch AB= (4/17) A In branch BC = (6/17) A In branch CD = (4/17) A In branch AD= (6/17) A In branch BD = (-2/17) A Total Current =(4/17) +(6/17)+(-4/17)+(6/17)+(-2/17)=(10/17) A 4. find R Equivalent
NEXT TOP PER INSTITUTE Dpp current questions 1. 1. How many electrons per second flow through the cross sectional of a conductor so that the conductor carries a current of 1 ampere? a. 6.00 x 10 16 /sec b. 6.00 x 10 17 /sec c. 6.00 x 10 19 /sec d. 6.25 x 10 18 /sec . 2. 2. In a discharge tube the number of hydrogen ions drifting across a cross section per second is 1.0 X 10 18 , while the number of electrons drifting in opposite direction across that of cross section is 2.7 x 10 18 per second . calculate the total current crossing the given cross section . a. 0.6 A ...
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