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dimulka [17.4K]
3 years ago
9

A coil is connected to a galvanometer, which can measure the current flowing through the coil. You are not allowed to connect a

battery to this coil. Given a magnet, a battery and a long piece of wire, can you induce a steady current in that coil?
Physics
1 answer:
fenix001 [56]3 years ago
6 0

Answer:

Yes we can induce current in the coil by moving the magnet in and out of the coil steadily.

Explanation:

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If it takes a force of 20n to stretch a spring 0.1 meter how much energy does the spring have?​
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The energy stored in the spring would be 1 joule.

Explanation:

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10. A satellites is in a circular orbit around the earth at a height of 360 km above the earth’s surface. What is its time perio
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Answer:

Orbital speed=8102.39m/s

Time period=2935.98seconds

Explanation:

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V2R+h=g(R2(R+h)2)

V=√g(R2R+h)

V= sqrt(9.8 × (6371000)^2/(6371000+360000)

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Time period ,T= sqrt(4× pi×R^3)/(G× Mcentral)

T= sqrt(4×3.142×(6.47×10^6)^3/(6.673×10^-11)×(5.98×10^24)

T=sqrt(3.40×10^21)/ (3.99×10^14)

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4 0
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what will be the focal lenght of a combined lens made by contact of two lenses of power +3D and -2D.​
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\\ \bull\tt\dashrightarrow P=P_1+P_2

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Now

\\ \bull\tt\dashrightarrow f=\dfrac{1}{P}

\\ \bull\tt\dashrightarrow f=\dfrac{1}{1}

\\ \bull\tt\dashrightarrow f=1m

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