Current Electricity-Series and Parallel Combinations of Resistors (NEET Physics): Questions 4 - 8 of 10

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Question number: 4

» Current Electricity » Series and Parallel Combinations of Resistors

MCQ▾

Question

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.

Diagram With 60Ω and 50Ω Resistors, Voltmeter and Battery.

Here volt meter connected across the 60Ω resistor and battery and 50Ω resistor connected in series with it.

Choices

Choice (4) Response

a.

0 Ω

b.

200 Ω

c.

300 Ω

d.

∞ Ω

Passage

In the circuit shown in the figure,

 5Ω resistor and 1Ω internal resistance of battery of 12 V

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

In figure 5Ω resistor are connected in series with battery of 12 V having internal resistance 1Ω.

Question number: 5 (1 of 3 Based on Passage) Show Passage

» Current Electricity » Series and Parallel Combinations of Resistors

MCQ▾

Question

Rate of conversion of chemical energy within the battery is

Choices

Choice (4) Response

a.

4W

b.

20W

c.

14W

d.

24W

Question number: 6 (2 of 3 Based on Passage) Show Passage

» Current Electricity » Series and Parallel Combinations of Resistors

MCQ▾

Question

Rate of dissipation of electrical energy in battery is

Choices

Choice (4) Response

a.

24 W

b.

20W

c.

4 W

d.

14 W

Question number: 7 (3 of 3 Based on Passage) Show Passage

» Current Electricity » Series and Parallel Combinations of Resistors

MCQ▾

Question

Rate of dissipation of electrical energy in external resistor is

Choices

Choice (4) Response

a.

24 W

b.

20 W

c.

14 W

d.

4W

Question number: 8

» Current Electricity » Series and Parallel Combinations of Resistors

MCQ▾

Question

For the circuit shown in the figure

Circuit diagram with R1, R2 and R3 resistor

Circuit Diagram With R1, R2 and R3 Resistor

R1 = 2kΩ, R2 = 6kΩ and RL = 1.5kΩ are connected with 24V battery as shown in figure.

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

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

Choices

Choice (4) Response

a.

2 and 4

b.

1, 2 and 3

c.

1 and 2

d.

1 and 3

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