Electromagnetic Induction & Alternating Currents-Peak and RMS Value of AC [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 12 - 17 of 18
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Question 12
Question MCQ▾
The resistance of a coil for dc is 5 ohm. In ac, the resistance will
Choices
Choice (4) | Response | |
---|---|---|
a. | Decrease | |
b. | Remain same | |
c. | Increase | |
d. | Be zero |
Question 13
Appeared in Year: 2016
Question MCQ▾
A resistance and a capacitor is reactance are connected in series across a source. When the capacitor is charged, the peak value of the displacement current is –
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 14
Appeared in Year: 2017
Question MCQ▾
In an electromagnetic wave in free space the root mean square value of the electric field is The peak value of the magnetic field is:
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 15
Question MCQ▾
A A. C. supply is connected between points and (Fig.) . What will be the potential difference V across the capacitor?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 16
Appeared in Year: 2022
Question MCQ▾
The peak voltage of the ac source is equal to
Choices
Choice (4) | Response | |
---|---|---|
a. | The rms value of the ac source | |
b. | The value of voltage supplied to the circuit | |
c. | times the rms value of the ac source | |
d. | times the rms value of the ac source |
Question 17
Question MCQ▾
In the series circuit shown in the figure, the rms voltage across the resistor and inductor are respectively. If the applied voltage is , then the peak voltage across the capacitor is
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | 400 V | |
c. | 1200 V | |
d. |