Question

7) A capacitor of
2.0μF
is connected to a battery of 2.0V through a resistance of
10kΩ
. What is the initial current in the circuit and the current after 0.02s?

a) 0.5μA
and 0.074mA

b) 7.4A and 5.0mA

c) 0.2μA
and 0.074mA

d) 6.2μA
and 7.04mA
8) A conductor 2cm long carrying a current of 8A lies at right angles to a magnetic field of which the flux density is 1.0T. Calculate the force exerted on the conductor
a) 0.20N
b) 0.16N
c) 0.25N
d) 0.45N