Current Electricity-Series and Parallel Combinations of Resistors [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 4 - 9 of 50

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Question 4

Question MCQ▾

The voltmeter shown in fig, reads 6V across the 60Ω resistors. Then the resistance of the voltmeter is-

Diagram with 60Ω and 50Ω Resistors, Voltmeter and Battery

Choices

Choice (4)Response

a.

0 Ω

b.

∞ Ω

c.

200 Ω

d.

300 Ω

Edit

Passage

In the circuit shown in the figure,

5Ω Resistor and 1Ω Internal Resistance of Battery of 12 V

Question 5 (1 of 3 Based on Passage)

Question MCQ▾

Rate of conversion of chemical energy within the battery is

Choices

Choice (4)Response

a.

24W

b.

14W

c.

20W

d.

4W

Edit

Question 6 (2 of 3 Based on Passage)

Question MCQ▾

Rate of dissipation of electrical energy in battery is

Choices

Choice (4)Response

a.

20W

b.

14 W

c.

4 W

d.

24 W

Edit

Question 7 (3 of 3 Based on Passage)

Question MCQ▾

Rate of dissipation of electrical energy in external resistor is

Choices

Choice (4)Response

a.

20 W

b.

24 W

c.

14 W

d.

4W

Edit

Question 8

Question MCQ▾

For the circuit shown in the figure

Circuit Diagram with R1, R2 and R3 Resistor

Select the correct answers and mark it according to the following codes:

  1. The potential difference across RL is 18 V
  2. The current I through the battery is 7.5 mA
  3. Ratio of powers dissipated in R1 and R2 is 3
  4. If R1 and R2 are interchanged magnitude of the power dissipated in RL will decrease by a factor of 9

Choices

Choice (4)Response

a.

1 and 2

b.

1 and 3

c.

1,2 and 3

d.

2 and 4

Edit

Question 9

Question MCQ▾

How can we convert the galvanometer of and current into Ammeter with maximum range of 6A.

Choices

Choice (4)Response

a.

By adding a resistance 6mΩ . in parallel with the galvanometer

b.

By adding a resistance 2.5mΩ in series with the galvanometer

c.

By adding a resistance 2.5mΩ in parallel with the galvanometer

d.

By adding a resistance 6mΩ in series with the galvanometer

Edit