EMI & AC Quiz
Practice quiz on EMI & AC (Physics). 5 questions.
About This Quiz
EMI & AC Quiz — Questions with Solutions
All 5 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.EMI discovered by?
- A.Michael Faraday
- B.Newton
- C.Einstein
- D.Tesla
Show answer
Answer: A. Michael Faraday
Faradays law.
Q2.Transformer works on?
- A.Mutual induction
- B.Self induction
- C.Ohms law
- D.Coulombs law
Show answer
Answer: A. Mutual induction
AC voltage change.
Q3.AC stands for?
- A.Alternating Current
- B.Automatic Current
- C.Applied Current
- D.Adjusted Current
Show answer
Answer: A. Alternating Current
Reverses direction.
Q4.AC frequency in India?
- A.50 Hz
- B.60 Hz
- C.100 Hz
- D.25 Hz
Show answer
Answer: A. 50 Hz
50 cycles/second.
Q5.Frequency unit?
- A.Hertz
- B.Watt
- C.Ampere
- D.Volt
Show answer
Answer: A. Hertz
Named after Heinrich Hertz.
Frequently Asked Questions
Is EMI & AC Quiz free to attempt on AajExam?
Yes. EMI & AC Quiz is completely free. You only need a free AajExam account to track your score, view detailed solutions and unlock cross-attempt analytics.
How long does it take to complete EMI & AC Quiz?
EMI & AC Quiz runs on a 1-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
Are detailed solutions provided?
Yes. Every question on EMI & AC Quiz ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.
Can I attempt EMI & AC Quiz multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
EMI & AC questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.