a battery of 12 volts is connected to three resistors of 4 ohm, 5 ohm and 3 ohm joined together in parallel, the current through 3 ohm resistor would be?

2.00 x 10^6 e passing through a conductor in 1 millisecond. Electric current through conductor is:

A 0.01A moving coil Galvanometer of 5 Ω resistance can be converted into a 0.2A ammeter by a resistance R with the Galvanometer when r is:

A 1000 W lamp operates at 220 V for 60 s.The electric current passing through the lamp will be

A 3 V battery is connected in series with ammeter and 2 ohm resistance after short circuiting. What will be the reading of ammeter?

A certain X-ray tube requires a current of 5mA at a voltage of 60kv. The rate of energy dissipation (in watts) is: