Electricity and Magentism

Front

What is the relationship between distance and electromagnetic force between two electromagnets?

Back

The smaller the distance between two electromagnets, the greater the electromagnetic force.

Front

What unit is electric current measured in?

Back

Ampere.

Front

What type of field does the Earth produce?

Back

Magnetic field.

Front

Which charges can move from one object to another?

Back

Negative charges.

Front

What is the term for the area around a magnet where magnetic forces can be detected?

Back

Magnetic field.

Front

What is the formula for calculating electric power?

Back

Power (P) = Voltage (V) × Current (I).

Front

What is the unit of electric resistance?

Back

Ohm.

Front

What is the effect of increasing voltage on current in a circuit with constant resistance?

Back

Increasing voltage increases current.

Front

What is the principle of electromagnetism?

Back

Electric current produces a magnetic field.

Front

What happens to the magnetic field when the current in an electromagnet is increased?

Back

The magnetic field strength increases.