Question:medium

A conductor of length 1 metre moves at right angles to a uniform magnetic field of flux density \(2\ \text{Wb/m}^2\) with a velocity of 40 metre/second. Calculate the induced e.m.f. when the conductor moves at an angle of 30 degree to the direction of the field.

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Motional e.m.f. is maximized when the conductor moves perpendicular to the magnetic field (\(\theta = 90^\circ\), \(\sin 90^\circ = 1\)).
When moving at an angle of 30°, the induced e.m.f. is exactly half of this maximum value (\(\sin 30^\circ = 0.5\)).

Updated On: Jul 23, 2026

50 V
30 V
40 V
15 V

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The Correct Option is C

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Top Questions on Engineering Mathematics

The integer value printed by the ANSI-C program given below is ________.


int funcp(){
    static int x = 1;
    x++;
    return x;
}

int main(){
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    printf("%d\n", (x+y));
    return 0;
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