Electricity Summative

Front

What is electric current?

Back

Electric current is the flow of electric charge, typically measured in Amperes (A). It represents the rate at which charge is flowing through a conductor.

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 is voltage?

Back

Voltage, also known as electric potential difference, is the measure of electric potential energy per unit charge. It is measured in Volts (V).

Front

What is resistance?

Back

Resistance is a measure of the opposition to the flow of electric current in a conductor, measured in Ohms (Ω).

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit in which the components are connected end-to-end, so that the current flows through each component in turn.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit in which the components are connected across common points or junctions, allowing multiple paths for the current to flow.

Front

How do you calculate total resistance in a series circuit?

Back

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

Front

How do you calculate 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

What is the formula for calculating power in an electrical circuit?

Back

Power (P) in an electrical circuit can be calculated using the formula: P = V × I, where P is power in Watts (W), V is voltage in Volts (V), and I is current in Amperes (A).

Front

What is the role of a light bulb in a circuit?

Back

A light bulb converts electrical energy into light energy and heat when an electric current passes through it.