Electric Current and Ohms Law

Front

What is the unit for voltage?

Back

Volts = V

Front

As the resistance in a circuit increases, what happens to the electric current?

Back

The electric current decreases.

Front

If two charges repel each other, what can we say about the charges?

Back

The two charges must be negative and negative.

Front

What happens to the current if the voltage in a circuit is increased?

Back

The current would increase.

Front

What factors affect the resistance of a material?

Back

A material's thickness, length, and temperature affect its resistance.

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 is expressed as V = I * R.

Front

What is the formula to calculate electric power?

Back

Electric power (P) is calculated using the formula P = V * I, where P is power in watts, V is voltage in volts, and I is current in amperes.

Front

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

Back

The relationship is defined by Ohm's Law: V = I * R.

Front

What happens to the current if the resistance in a circuit is decreased?

Back

The current increases.

Front

What is the definition of electric current?

Back

Electric current is the flow of electric charge, typically measured in amperes (A).