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10th CBSE
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What do you understand by live, neutral and earth wires? Do all the three normally carry electricity?

Important Questions on Magnetic Effect of Electric Current

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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 11
What is the function of the earth wire in electric lines? Why is the metallic body of an electric appliance connected to the earth wire?
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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 12
What is a short circuit? How does a fuse help in case there is a short circuit?
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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 13
An electric heater is rated 2 kW, 220 V. If a fuse is to be connected to it, should it be rated 5 A or 15 A?
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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 1
A magnetic field line is used to find the direction of
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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 2

An electric current passes through a straight wire. Magnetic compasses are placed at the points A and B

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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 3
The magnetic field lines due to a straight wire carrying a current are
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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 4
The magnetic field lines inside a long current-carrying solenoid are nearly
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10th CBSE
IMPORTANT
Foundation Science Physics for Class 10>Chapter 5 - Magnetic Effect of Electric Current>EXERCISES>Q 5
The direction of the force on a current-carrying wire placed in a magnetic field depends on