Exploring Electric Current
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Easy
Nikeeta KHANWARIA
Used 6+ times
FREE Resource
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the magnetic effect of electric current?
Electric current can only flow in a vacuum.
Electric current produces a magnetic field.
Electric current has no effect on magnetic fields.
Electric current generates heat only.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a compass react to an electric current?
A compass needle attracts to the electric current directly.
A compass needle remains unaffected by electric currents.
A compass needle spins randomly without any direction.
A compass needle deflects due to the magnetic field generated by the electric current.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the principle behind electromagnets?
Electromagnets can only function in a vacuum.
Electromagnets are made from permanent magnets.
Electromagnets work by generating a magnetic field through electric current.
Electromagnets operate solely on magnetic fields without electricity.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name one application of electric current in daily life.
Lighting up street lamps
Powering household appliances like refrigerators
Heating water in kettles
Charging mobile phones
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does electric current produce heat?
Electric current produces heat through resistance in conductors, converting electrical energy into thermal energy.
Electric current cools down materials by reducing their temperature.
Electric current generates light without producing heat.
Electric current creates sound waves instead of heat.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of electric current in electric motors?
Electric current is used to store energy in batteries.
Electric current cools the motor to prevent overheating.
Electric current generates a magnetic field that produces torque to rotate the motor.
Electric current powers the lights in the motor's control panel.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain how electric current can create a magnetic field.
Electric current creates a magnetic field due to the movement of charged particles in the conductor.
Magnetic fields are created by static electricity.
Electric current can only flow in a vacuum.
Electric current has no effect on magnetic fields.
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