Choose the correct options for the following questions.
The passage of current is accompanied by a magnetic field in the surrounding space:
Difficulty: Easy
A:
Always accompanied
B:
Sometimes accompanied
C:
Never accompanied
D:
Any of above
The strength of magnetic field at certain points around a wire depends upon:
Difficulty: Easy
A:
Value of current passing
B:
Distance from the current element
C:
Color of the material
D:
Both a and b
Magnetic effect of current is used:
Difficulty: Easy
A:
In electric motor
B:
To detect current
C:
To measure current
D:
All
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