D 66 x 10 15 ms 12 two long parallel wires are

d. 6.6 x 10 15 m/s
12. Two long, parallel wires are separated by a distance of 2.50 cm. The force per unit length
that each wire exerts on the other is 4.00 x 10 -5 N/m. The current in one wire is 0.60 A.
calculate the current in the second wire.
a. 444 A
b. 234 A
c. 833 A
d. 630 A
13. Which, among the following qualities, is not affected by the magnetic field? 14. What is the strength of magnetic field known as ________ 15. What is the magnetic field outside a solenoid? 16. If a parallel plate capacitor of plate area 2m 2 and plate separation 1m store the charge of
1.77 × 10 -11 C. What is the voltage across the capacitor?
a. 1 V
b. 2 V
c. 3 V
d. 4 V

17. Calculate the current I
3
in the following circuit.
18. For high frequencies, capacitor acts as _________
19. Capacitor blocks__________ after long time.