Electricity Tes...

A 4$$\Omega $$ (or 4 ohm) wire and a 2 $$\Omega $$ (or 2 ohm)wire are connected in parallel. A current of 3A passes through the wires. How much current passes through the 2 $$\Omega $$ (or 2 ohm) wire?

The potential difference across a $$6\Omega$$ resistor is $$12V$$. The current flowing in the resistor will be

A radio-set of resistance 20 $$\Omega$$and a resistor of 4 $$\Omega$$ are connected in series with a 6V battery. What is the potential difference across the radio-set?

The potential difference between the terminals of an electric heater is 220 V and the current is 5A. What is the resistance of the heater?

Two resistors of $$30 \Omega$$ and $$20 \Omega$$ are joined together in series and then placed in parallel with a $$50 \Omega$$ resistor. What is the effective resistance of the combination?

Which one of the following substances has infinitely high electrical resistance?

What is the effective resistance between points A and B?

Electric current is a ________.

The effective resistance of a circuit containing resistances in parallel is.

Power dissipated in the resistor is $$P=$$ ________.