Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. It can be expressed as V = I × R.

Front

What does V stand for in electrical circuits?

Back

V stands for Voltage, which is the electric potential difference between two points.

Front

What is the formula to calculate current in a circuit?

Back

Current (I) can be calculated using the formula I = V / R, where V is voltage and R is resistance.

Front

What happens to the total resistance in a series circuit?

Back

In a series circuit, the total resistance (R_total) is the sum of all individual resistances: R_total = R1 + R2 + R3 + ...

Front

What happens to the total resistance in a parallel circuit?

Back

In a parallel circuit, the total resistance (R_total) can be calculated using the formula: 1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

Front

How does adding more resistors in series affect the total resistance?

Back

Adding more resistors in series increases the total resistance.

Front

How does adding more resistors in parallel affect the total resistance?

Back

Adding more resistors in parallel decreases the total resistance.

Front

What is the effect of increasing voltage on current in a series circuit?

Back

Increasing the voltage in a series circuit increases the current, provided the resistance remains constant.

Front

What is the effect of rearranging a series circuit into a parallel circuit on bulb brightness?

Back

Rearranging a series circuit into a parallel circuit increases the brightness of the bulbs because each bulb receives the full voltage.

Front

What is the unit of resistance?

Back

The unit of resistance is Ohm (Ω).