For which of the following is an EMF induced?
A. A conducting rod is pulled on conducting rails that are placed in a uniform magnetic field directed into the page.
B. A conducting loop moves through a uniform magnetic field directed into the page.
C. A conducting loop rotates in a uniform magnetic field directed into the page.
D. A conducting loop moves in a magnetic field produced by an infinite current-carrying wire.
1.A only
2.A and B only
3.A and C only
4.A and D only
5.B and C only
6.A, B, and C
7.A, C, and D
8.All of them
9.None of the above
Question 2A long conducting bar moves with a constant velocity in a uniform magnetic field. The bar and its velocity are perpendicular to the magnetic field as shown. Which of the following statements are true?
A. At steady state there is an electric field in the bar.
B. At steady state there is a current in the bar.
C. At steady state there is a magnetic force on bar.
1.A only
2.B only
3.C only
4.A and B only
5.A and C only
6.B and C only
7.A, B, and C
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