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dsp73
3 years ago
14

5. i) Name two devices based on interaction between magnetic field and current carrying conductor.

Physics
1 answer:
anyanavicka [17]3 years ago
5 0

Answer:

some common devices that use current carrying conductors and magnetic fields are electric motor electric generator loudspeakers microphones and measuring instruments like galvanometer ammeter and voltmeter

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A car going at v = 29.7 m/s (67 mph) rounds a curve of radius R = 50.0 m, where the road is banked at an angle of θ = 30.0°. Wha
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Answer:

μ = 0.6

Explanation:

given,

speed of car = 29.7 m/s

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minimum static friction = ?

now,

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now, writing the forces acting along x- direction

N sin θ + f cos θ = F_{net}

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taking cos θ from nominator and denominator

F_{net} =\dfrac{tan\theta + \mu}{1-\mutan\theta}. mg

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\mu=\dfrac{29.7^2 -50 \times 9.8tan 30^0}{29.7^2\times tan 30^0 +50 \times 9.8}

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