Answer to Question #61347 in Electricity and Magnetism for muhammad umar

Question

1 In the circuit shown, each of the cells has an emf of 2V and internal resistance of
0.1Ω
. Find the current in through the
0.5Ω
a) 0.13A
b) 3.45A
c) 1.27A
d) 2.44A

2) Calculate the electric field everywhere outside of a very long rod, radius R and charged to a uniform linear charge density
λ
.

a) E⃗ =λπrϵ0r^
E→=λπrϵ0r^

b) E⃗ =λπϵ0ln1rr^
E→=λπϵ0ln1rr^

c) E⃗ =λ2πrϵ0r^
E→=λ2πrϵ0r^

d) E⃗ =λ2πϵ0ln1rr^
E→=λ2πϵ0ln1rr^