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Electromagnetic Induction & Alternating Currents-Self and Mutual Inductance [AIIMS (All India Institute of Medical Sciences) Physics]: Questions 1 - 6 of 9
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Question 1
Question MCQ▾
The mutual inductance of two coils when magnetic flux changes by and current changes by 0.01 A is –
Choices
Choice (4) | Response | |
---|---|---|
a. | 4 H | |
b. | 3 H | |
c. | 8 H | |
d. | 2 H |
Question 2
Appeared in Year: 1982
Question MCQ▾
The current passing through a choke coil of 5 H is decreasing at the rate of . The emf developing across the coil is – [CPMT, MPPMT-90, AIIMS-97]
Choices
Choice (4) | Response | |
---|---|---|
a. | 2.5 V | |
b. | – 10 V | |
c. | 10 V | |
d. | – 2.5 V |
Question 3
Appeared in Year: 1998
Question MCQ▾
Transformer works on the basis of the following phenomenon –
[AIIMS, RPMT-89]
Choices
Choice (4) | Response | |
---|---|---|
a. | Electrical discharge | |
b. | Generation of electro-magnetic waves. | |
c. | Mutual induction | |
d. | Self-induction |
Question 4
Question MCQ▾
The current passing through a choke coil of 12 H is decreasing at the rate of . The emf developing across the coil is –
Choices
Choice (4) | Response | |
---|---|---|
a. | 12 V | |
b. | – 12 V | |
c. | 6 V | |
d. | – 6 V |
Question 5
Question MCQ▾
The current passing through a choke coil of 9 H is decreasing at the rate of . The emf developing across the coil is –
Choices
Choice (4) | Response | |
---|---|---|
a. | -27 V | |
b. | – 3.0 V | |
c. | 27 V | |
d. | 3 V |
Question 6
Question MCQ▾
The of mutual inductance of two coils when magnetic flux changes by 9 and current changes by 0.03 A is –
Choices
Choice (4) | Response | |
---|---|---|
a. | 3 H | |
b. | 9 H | |
c. | 2 H | |
d. | 6 H |