n = 2 to n = 1
n = 1 to n = 2
n = 2 to n = 3
n = 3 to n = 2
Correct answer is B
No explanation has been provided for this answer.
In the circuit diagram above. Calculate the energy stored in the inductor at resonance
0.100J
0.050J
0.010J
0.005J
Correct answer is B
No explanation has been provided for this answer.
The material used for constructing the core of an electromagnet is
iron
carbon
copper
steel
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements about magnetic lines of force is not correct?
a magnnetic line of force is an imaginary line which the north pole of a magnet would describe if it is free to moves
magnetic lines of force do not cross one another
magnetic lines of force are closely packed together at neutral point
the presence of magnetic lines of force in a region indicates the presence of a magnetic field
Correct answer is C
No explanation has been provided for this answer.
The Earth's magnetic equator passes through Jos in Nigeria. At Jos. the
angle of variation is zero
magnetic declination is 90o
angle of dip is zero
horizontal component of the Earth's magnetic field is zero
Correct answer is C
No explanation has been provided for this answer.
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