If 5 A current flows through a circuit, then convert the current in terms of microampere?

If 3 A current flows through a circuit, then convert the current in terms of milliampere.

A current of 2A flows through a 12 V bulb then find resistance.

When current flows through choke coil, the dissipation of power is:

In an electric circuit, the current starts from

In the circuit given , the current through the zener diode is

An electric heater of resistance 5 Omega is connected to an electric source. If a current of 6 A flows through the heater, then find the amount of heat produced in 5 minutes.

A semiconducting device is connected in a series circuit with a battery and a resistance.A current is found to pass through the circuit .If the polarity of the battery is reversed, the current drops to almost zero.The device may be