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astraxan [27]
3 years ago
14

220V and 5A is supplied to the primary coil. The turns ratio is 500. What is the power on the secondary coil?

Physics
1 answer:
alisha [4.7K]3 years ago
4 0

Answer: 1100 W

Explanation:

Input power  = 220(5) = 1100 W

The transformer will step up/down voltage, but will also step down/up current.

Neglecting hysteresis and other minor losses, the power will remain the same.

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8 0
3 years ago
Which factor does notaffect the resistance of a material?
Leona [35]

Answer:

I think c is correct options....

Explanation:

The resistance of the wire increases with increase in temperature. The resistance does not depend on the weight of the wire. Therefore, the correct option is weight.

6 0
3 years ago
Read 2 more answers
Pls help me with this one
lora16 [44]

Answer :

The answer is clearly C

Explanation:

Because the only way currents move are to the side

5 0
3 years ago
Change in velocity divided by time. Rate of change of velocity of an object
trapecia [35]
I think it is acceleration
4 0
3 years ago
What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields.
Charra [1.4K]

Explanation:

Given that,

Electric field, E = 7900 V/m

Magnetic field, B=9.1\times 10^{-3}\ T

(a) Let v is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields. The magnitude of electric force and the magnetic force balance each other as :

qE=qvB

v=\dfrac{E}{B}

v=\dfrac{7900\ V/m}{9.1\times 10^{-3}\ T}

v=8.68\times 10^5\ m/s

(b) Let r is the radius of the electron orbit. The radius of the motion of electron is given by :

r=\dfrac{mv}{qB}

r=\dfrac{9.1\times 10^{-31}\ kg\times 8.68\times 10^5\ m/s}{1.6\times 10^{-19}\ C\times 9.1\times 10^{-3}\ T}

r=5.4\times 10^{-4}\ m

Hence, this is the required solution.

3 0
3 years ago
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