A. 4/g B. g/4 C. g/16 D. 16/g
Answer: The correct option is C.
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#2.
In the diagram above, the direction of the force between N and S in the magnetic field is
A. NS B. SN C. MP D. PM
Answer: The correct option is A.
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Answer: There is no correct option. We need to know the frequency in order to find the inductance from the information provided.
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Answer: The correct option is A.
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#3. Calculate
the inductance of a coil of resistance 30Ω connected to a 100V a.c source if
the coil draws an r.m.s current of 2A.
A.
1.25H B. 2.50H
C. 0.60H D.
0.04H
#4. What force has to
be exerted on a mass of 60kg to give it an acceleration of 10m/s2 vertically
upwards? [g=10ms-2].
A. 600N
B. 1200N C. 400N
D. 300N
Answer
The correct option is B.
More explanation here
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