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A step- up transformer is used on a 120 V line to provide a potential difference of 2400 V. If the primary coil has 75 turns, the number of turns in the secondary coil is
- a)150
- b)1200
- c)1500
- d)1575
Correct answer is option 'C'. Can you explain this answer?
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A step- up transformer is used on a 120 V line to provide a potential ...
Step-Up Transformer
A step-up transformer is a type of transformer that increases the voltage of an alternating current (AC) power supply. It does this by having more turns on the secondary coil than on the primary coil.
Given Data
- Primary voltage (Vp) = 120 V
- Secondary voltage (Vs) = 2400 V
- Number of turns in the primary coil (Np) = 75
To find: Number of turns in the secondary coil (Ns)
Formula
The voltage ratio of a transformer is equal to the turns ratio. That is,
Vp/Vs = Np/Ns
where,
Vp = primary voltage
Vs = secondary voltage
Np = number of turns in the primary coil
Ns = number of turns in the secondary coil
Solution
Substituting the given values in the formula, we get
120/2400 = 75/Ns
Cross-multiplying, we get
Ns = (75 x 2400)/120
Ns = 1500
Therefore, the number of turns in the secondary coil is 1500.
Answer: Option (c) 1500
A step-up transformer is a type of transformer that increases the voltage of an alternating current (AC) power supply. It does this by having more turns on the secondary coil than on the primary coil.
Given Data
- Primary voltage (Vp) = 120 V
- Secondary voltage (Vs) = 2400 V
- Number of turns in the primary coil (Np) = 75
To find: Number of turns in the secondary coil (Ns)
Formula
The voltage ratio of a transformer is equal to the turns ratio. That is,
Vp/Vs = Np/Ns
where,
Vp = primary voltage
Vs = secondary voltage
Np = number of turns in the primary coil
Ns = number of turns in the secondary coil
Solution
Substituting the given values in the formula, we get
120/2400 = 75/Ns
Cross-multiplying, we get
Ns = (75 x 2400)/120
Ns = 1500
Therefore, the number of turns in the secondary coil is 1500.
Answer: Option (c) 1500
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A step- up transformer is used on a 120 V line to provide a potential difference of 2400 V. If the primary coil has 75 turns, the number of turns in the secondary coil isa)150b)1200c)1500d)1575Correct answer is option 'C'. Can you explain this answer?
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