Electromagnetic Induction & Alternating Currents-Peak and RMS Value of AC [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 5 - 11 of 18

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Passage

Read the passage given below and answer the questions that follow:

If the voltage in an a c circuit is represented by the eq. , , then

Question 5 (1 of 2 Based on Passage)

Question MCQ▾

RMS value of the voltage is

Choices

Choice (4)Response

a.

b.

c.

220 V

d.

314 V

Edit

Question 6 (2 of 2 Based on Passage)

Question MCQ▾

Average voltage is

Choices

Choice (4)Response

a.

b.

c.

220 V

d.

Edit

Question 7

Question MCQ▾

If instantaneous current is given by amperes, then the r. m. s value of current is

Choices

Choice (4)Response

a.

b.

4 ampere

c.

zero ampere

d.

Edit

Question 8

Question MCQ▾

A resistance of 20Ω is connected to a source of an alternating potential V = 220 sin (100πt) . The time taken by the current to change from its peak value to r. m. s value is,

Choices

Choice (4)Response

a.

0.2 sec

b.

2.5 × 10-3 sec

c.

25 × 10-3 sec

d.

0.25 sec

Edit

Question 9

Question MCQ▾

In a circuit, the value of alternating current is measured by hot wire ammeter as 10 ampere. Its peak value will be

Choices

Choice (4)Response

a.

7.07 A

b.

14.14 A

c.

10 A

d.

20 A

Edit

Question 10

Question MCQ▾

The peak value of an alternating e. m. f. E given by E = E0 cos t is 10 volts and its frequency is 50 Hz. At time , the instantaneous e. m. f. is

Choices

Choice (4)Response

a.

10 V

b.

5 V

c.

1 V

d.

Edit

Question 11

Question MCQ▾

An alternating current is given by the equation . The r. m. s. current is given by

Choices

Choice (4)Response

a.

b.

c.

d.

Edit