Question

A battery with EMF 6.0 Volts and internal resistance 0.1 ohms
is connected by a long wire to a resistor R = 8.0 ohms. The
wire goes around a solenoid. The
solenoid has 4000 turns per meter and area 25 cm^2.
a) If the current in the solenoid is I = 200 Amps and is
constant, then what is the current through the 8 ohm resistor?
b) If the current in the solenoid is I(t) = 200 cos(120(pi)t),
then what is the maximum current through the 8 n resis­
tor?
c) Is the battery ever being charged when the current in
the solenoid is I(t) = 200cos(120(pi)t)?

Related Questions

1. An electrical circuit consists of a battery with 2 cells,each with an EMF of 12 volts and an inte... A battery X of emf 6volt and internal resistance 2(ohms) is connected in series with a battery Y of... An i Pod draws about 3.7 volts (i Pod batteries are rated for 3.7 volts and 1200 mAhours.) Ignore t... Three different size lights are running off a low voltage system. The resistance of the three ligh...