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Artist 52 [7]
4 years ago
14

Why are moving iron instrument are of repulsion type

Physics
1 answer:
never [62]4 years ago
5 0

Answer:

he spring provides the controlling torque. The air friction induces the damping torque, which opposes the movement of the coil. The repulsion type instrument is a non-polarized instrument, i.e., free from the direction of current passes through it. Thus, it is used for both AC and DC

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A ceiling fan has 5-inch blades (so the radius of the circular fan is inches). Suppose the fan turns at a rate of 2 revolutions
Effectus [21]

Answer:

a) 12.56 rad per minute

b)62.8 inches per minute

Explanation:

Given:

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a)

Let \omega be the angular velocity of the blade which is given by

\omega =2\pi f\\\omega=2\times 3.14 \times 2\\\omega=12.56\ \rm rad/min

b)

Let v be the linear speed of the tip of the blade which is given by

v=\omega \times R\\v=12.56\times 5\\v=62.8\ \rm inches/min

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8 0
3 years ago
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4 years ago
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SSSSS [86.1K]
A magnet sitting next to a wire does not induce a current in the wire because <span> the magnet is very small and short compared to the coil radius. If you pretend it's two individual monopoles, they're only a few mm apart, so at several cm there's almost perfect cancellation of the fields.</span>
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List five (5) compounds h2o can form (10 points)
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8 0
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A single output device has failed while the remainder of the PLC system is functioning normally The indicator light on the outpu
Dmitry_Shevchenko [17]

Answer:

check the point where the output device's field wiring is connected to the output rack. ( C )

Explanation:

Given that an indicator light on the output module is indicating that a signal has been sent to the output point where the failed single output device is connected , the best line of action to properly indicate the output device that has filed in the PLC system, is to check the point where the output device's field wiring is connected to the output rack in the PLC system.

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