Q1PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Which of the following statement
regarding transformer is incorrect?
Physics · JEE
AC generator and transformer Mock Test for JEE
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Syllabus context
Part of Electromagnetic Induction and Alternating Currents in JEE Main Physics.
- Electromagnetic induction: Faraday's law, induced emf and current, Lenz's law, eddy currents, self and mutual inductance
- Alternating currents, peak and RMS value of alternating current/voltage
- Reactance and impedance, LCR series circuit, resonance, power in AC circuits, wattless current
- AC generator and transformer
Free sample questions
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Q2PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
The input AC voltage to the transformer
is and output is . Then:
Q3PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Assertion (A): More the turns more is
the
resistance
Reason(R): Impedance of primary and secondary in a transformer is directly proportional
to number
of turns in the coils.
Q4PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Which of the following will not increase voltage in a simple generator?
Q5PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
The output power in step-up transformer used in practice is
Q6PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
The device which converts the
mechanical energy in to electric energy is
Q7PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
A step-up transformer of turns ratio 2: 1 has AC voltage applied to primary The frequency of AC output voltage across secondary is :
Q8PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
What do we name the device which
increases the emf?
Q9PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
A power transmission line feeds input power to a step-down transformer with its primary windings having 4000 turns. The output power is delivered at by the transformer. If the current in the primary of the transformer is and its efficiency is the output current would be :
Q10PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
What energy conversion does take place
in a generator when it is in use?
Q11PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
In a step-down transformer the
secondary coil has number of
turns
Q12PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Which one of the following statements
is true?
Q13PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Alternating current is transmitted to
distant places at
Q14PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
A step up transformer is used to:
Q15PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Which of the following statement is
correct?
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Popular questions in AC generator and transformer
- Which of the following statement regarding transformer is incorrect?…
- A power transmission line feeds input power \( t 2300 \mathrm{V} \) to a step-down transformer with its primary windings…
- A step up transformer is used to:…
- Which one of the following statements is true?…
- A step up transformer is used to:…
- A power transmission line feeds input power \( t 2300 \mathrm{V} \) to a step-down transformer with its primary windings…
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