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mario62 [17]
3 years ago
15

Magnetic induction is used for what?

Physics
1 answer:
DochEvi [55]3 years ago
4 0
For radio broadcasting, in electricity meters, in any generator. 
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Two point charges are separated by 6.4 cm . The attractive force between them is 10 N . Suppose that the charges attracting each
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Answer:

Two point charges are separated by 6.4 cm . The attractive force between them is 10 N .

units.

Explanation:

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Which object is probably composed of ice and dust?
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A transformer connected to a 120-v(rms) at line is to supply 13,000V(rms) for a neon sign.
lyudmila [28]

Answer:

(a) 108

(b) 110.500 kW

(c) 920.84 A

Solution:

As per the question:

Voltage at primary, V_{p} = 120\ V          (rms voltage)

Voltage at secondary, V_{s} = 13000\ V  (rms voltage)

Current in the secondary, I_{s} = 8.50\ mA  

Now,

(a) The ratio of secondary to primary turns is given by the relation:

\frac{N_{s}}{N_{p}} = \frac{V_{s}}{V_{s}}

where

N_{p} = No. of turns in primary

N_{s} = No. of turns in secondary

\frac{N_{s}}{N_{p}} = \frac{13000}{120} ≈ 108

(b) The power supplied to the line is given by:

Power, P = V_{s}I_{s} = 13000\times 8.50 = 110.500\ kW

(c) The current rating that the fuse should have is given by:

\frac{V_{s}}{V_{p}} = \frac{I_{p}}{I_{s}}

\frac{13000}{120} = \frac{I_{p}}{8.50}

I_{p} = \frac{13000}{120}\times 8.50 = 920.84\ A

 

6 0
3 years ago
Current in conducter is​ due to
maw [93]

Answer:

Free electrons in a conductor

Explanation:

Current in a conductor is due to flow or motion of the free electrons in it.

The electric current is the flow of electrons in a conductor. The force that causes the current flow through a conductor is called the voltage.

Hope this helps you out! : )

4 0
3 years ago
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