CUET · PHYSICS · PYQ PAPER 2023
If the speed of rotation of the armature of a generator is increased, how would it effect (i) The maximum emf produced (ii) The frequency of the emf?
- A Maximum emf increases but frequency of emf decreases
- B Maximum emf and frequency both increases
- C Maximum emf and frequency both decreases
- D Maximum emf decreases but frequency of emf decreases
Answer & Solution
Correct Answer
(B) Maximum emf and frequency both increases
Step-by-step Solution
Detailed explanation
Maximum emf \( \mathcal{E}_{max} \propto \omega \) Frequency of emf \( f \propto \omega \) Increased speed of rotation (\( \omega \)) increases both maximum emf and frequency of emf.
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