Here are 10 one-word answer type questions from the topic Magnetic Effect of Electric Current with their answers and explanations:
Topic: Magnetic Effect of Electric Current
When an electric current passes through a wire, it produces a magnetic field around it. This is called the magnetic effect of electric current. It was first discovered by Hans Christian Oersted and is used in devices like electromagnets and electric bells.
1. Question: Which scientist discovered the magnetic effect of electric current?
Answer: Oersted
Explanation: Hans Christian Oersted discovered that electric current produces a magnetic field around it.
2. Question: What is the effect called when a current-carrying wire behaves like a magnet?
Answer: Magnetic
Explanation: When electric current flows through a wire, it produces a magnetic effect.
3. Question: What instrument is used to detect the magnetic effect of electric current?
Answer: Compass
Explanation: A compass needle deflects when placed near a current-carrying wire, showing the magnetic effect.
4. Question: What is the coil of wire wrapped around an iron piece called when current passes through it?
Answer: Electromagnet
Explanation: When current flows through a coil wound around an iron nail, it becomes an electromagnet.
5. Question: What happens to the compass needle when current is passed through a nearby wire?
Answer: Deflection
Explanation: The compass needle gets deflected due to the magnetic field produced by electric current.
6. Question: What is the magnetic material used to make electromagnets?
Answer: Iron
Explanation: Electromagnets are made using soft iron cores because they easily lose magnetism when current is switched off.
7. Question: In which electric device is the magnetic effect of current used to produce sound?
Answer: Bell
Explanation: An electric bell works on the principle of the magnetic effect of electric current.
8. Question: What is produced around a wire when electric current flows through it?
Answer: Magnetic field
Explanation: A magnetic field is produced around a current-carrying wire.
9. Question: What kind of current is required to create a magnetic effect?
Answer: Electric
Explanation: The magnetic effect is observed only when electric current is passed through a conductor.
10. Question: What is the direction of magnetic field lines around a current-carrying wire?
Answer: Circular
Explanation: The magnetic field lines produced around a straight current-carrying wire are circular in shape.
If you want, I can now compile all your one-word question sets into one Worksheet PDF with space to write answers and an answer key.
Shall I proceed?
