Basic Circuits and Ohm's Law

Front

What unit is used to measure resistance?

Back

Ohms

Front

What is not needed in order to create a working circuit?

Back

Lightbulb

Front

What unit is used to measure current?

Back

Amps

Front

A light bulb operating at a dc voltage of 100 V has a resistance of 200 Ω. How much power is dissipated in this bulb?

Back

50 W

Front

What does R stand for in electrical terms?

Back

Resistance

Front

What is Ohm's Law?

Back

V = I × R (Voltage = Current × Resistance)

Front

What is the unit of voltage?

Back

Volts

Front

What is the relationship between voltage, current, and resistance?

Back

Voltage is directly proportional to current and resistance.

Front

What is a circuit?

Back

A closed loop that allows current to flow.

Front

What is the role of a battery in a circuit?

Back

It serves as a power source providing voltage.