EASY
12th ICSE
IMPORTANT
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The net charge in a current-carrying conductor is zero, even then it experiences force in a magnetic field. Why?

Important Questions on Moving Charges and Magnetic Field

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12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 30
Free electrons always keep on moving in a conductor. Even then, no magnetic force acts on them in a magnetic field unless a current is passed through it. Why?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 31

Two long, parallel, wires are hanging freely. If they are connected to a battery in series? What would be effect on their position?

 

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 31

Two long, parallel, wires are hanging freely. If they are connected to a battery in parallel, what would be the effect on their positions?

 

HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 32

In the given figure, a long, straight current-carrying wire AB is fixed, while the rectangular current-loop is free to move. In which direction would the loop move? Explain with
reason.

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MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 33
A body is suspended from the lower end of a vertical spring. What shall be the effect on the position of the body when a current is sent through the spring? Does it depend upon the direction of current in the spring?
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12th ICSE
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NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 34
If the current flowing in the spring be alternating, then?
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12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 35
An electron-beam moving with uniform velocity is gradually diverging. When it is accelerated to a very high velocity, it starts converging. Why?
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12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 1
State Biot-Savart’s law for the magnetic field due to a current-carrying element, explaining the symbols. Define ‘tesla’ on the basis of this law. How is gauss related to tesla?