Electricity: Magnetic and Heating Effects
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Simple Electric Circuits and Components
SubtopicSimple Electric Circuits and Components under Electricity: Magnetic and Heating Effects for Grade 4 CBSE.
Preview questions (no answers)
- 1.
Electricity we use in our homes comes from ________.
A.Power stations
B.Plants
C.Stones
D.Clouds
- 2.
Which of these materials will allow a bulb to glow if placed in a circuit gap?
A.A rubber eraser
B.A glass marble
C.An iron nail
D.A piece of paper
- 3.
When electricity flows through a high-resistance wire, it becomes hot. This is called ________ effect.
A.Magnetic
B.Heating
C.Light
D.Sound
Download the worksheet for Electricity: Magnetic and Heating Effects - Simple Electric Circuits and Components to practice offline. It includes additional chapter-level practice questions.
The Heating Effect of Current
SubtopicThe Heating Effect of Current under Electricity: Magnetic and Heating Effects for Grade 4 CBSE.
Preview questions (no answers)
- 1.
Which of these is a benefit of the heating effect of current?
A.It makes wires waste energy
B.It helps us cook food using electric stoves
C.It makes the laptop battery hot
D.It can cause short circuits
- 2.
The wire used in a fuse has a ______ melting point.
A.Very high
B.Low
C.Infinite
D.Medium
- 3.
If you use a heater for 1 hour, it will produce ______ heat than if used for 10 minutes.
A.Less
B.More
C.The same
D.Zero
Download the worksheet for Electricity: Magnetic and Heating Effects - The Heating Effect of Current to practice offline. It includes additional chapter-level practice questions.
The Magnetic Effect and Electromagnets
SubtopicThe Magnetic Effect and Electromagnets under Electricity: Magnetic and Heating Effects for Grade 4 CBSE.
Preview questions (no answers)
- 1.
Can an electromagnet have more than two poles?
A.Yes, it can have five
B.No, it always has one North and one South pole
C.Yes, if it is very long
D.No, it has no poles at all
- 2.
What happens if you increase the current flowing through a coil?
A.The magnetic field disappears
B.The magnetic field becomes stronger
C.The magnetic field becomes weaker
D.The wire turns into a permanent magnet
- 3.
Which part of the electromagnet setup provides the force that attracts the iron pins?
A.The plastic insulation
B.The magnetic field
C.The air around it
D.The glass table
Download the worksheet for Electricity: Magnetic and Heating Effects - The Magnetic Effect and Electromagnets to practice offline. It includes additional chapter-level practice questions.