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Electrical Engineering - Magnetism and Electromagnetism

Exercise : Magnetism and Electromagnetism - General Questions
16.
The direction of a magnetic field within a magnet is
from south to north
from north to south
back to front
front to back
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
When the north poles of two bar magnets are brought close together, there will be
no force
a downward force
a force of attraction
a force of repulsion
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The ability of a material to remain magnetized after removal of the magnetizing force is known as
permeability
reluctance
hysteresis
retentivity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is
1.7 mA
16 mA
12 mA
120 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The induced voltage across a stationary conductor in a stationary magnetic field is
zero
reversed in polarity
increased
decreased
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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