MEDIUM
10th CBSE
IMPORTANT
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Write the difference between direct current and alternating current.

Important Questions on Magnetic Effects of Electric Current

EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 7
Which one of the two types of current is mostly produced in power stations in our country?
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 7
Name one device which provides alternating current.
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 7
State one important advantage of using alternating current.
MEDIUM
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 8
You are given a strong bar magnet and magnetic compass needle. Describe an activity by which the magnetic field lines due to bar magnet can be drawn.
MEDIUM
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 9
Give the significance of the following in the domestic circuit?
  1. Electric meter
  2. Earthing.
MEDIUM
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 9
List two precautions that should be taken to avoid overloading.
MEDIUM
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 10
What is short-circuiting of an electric circuit? An electric motor of 1.5 kW power rating is operated in a domestic electric circuit of current rating 5 A. What would happen when it is switched on? Give reason for your answer.
MEDIUM
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 11
State one factor that can lead to a short circuit. Name the device in the household circuit that acts as a safety measure for it. State the principle of its working.