Current Electricity (NEET Physics): Questions 13 - 16 of 75

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2098 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 13

» Current Electricity » Kirchhoff's Laws

MCQ▾

Question

If V B - V A = 4 V in the given figure, then resistance X will be

Circuit diagram consist of two battery and two resistors

Circuit Diagram Consist of Two Battery and Two Resistors

Here in figure between point A and B 5V battery and 10Ω resistor connected in series and parallel to them 2v battery and one unknown resistor connected series.

Choices

Choice (4) Response

a.

5 Ω

b.

20 Ω

c.

10 Ω

d.

15 Ω

Question number: 14

» Current Electricity » Resistances of Different Materials

MCQ▾

Question

The reading of voltmeter in the following circuit will be-

Circuit Diagram of 20Ω and 80Ω resistors, voltmeter and battery

Circuit Diagram of 20Ω and 80Ω Resistors, Voltmeter and Battery

Here in figure 20Ω and 80Ω resistors and battery connected in series. Voltmeter connected across the 80Ω resistors, internal resistance of voltmeter is also 80Ω.

Choices

Choice (4) Response

a.

0.80 volt

b.

2 volt

c.

1.60 volt

d.

1.33 volt

Question number: 15

» Current Electricity » Potentiometer

Assertion-Reason▾

Assertion (Ꭺ)

A potentiometer of longer length is used for accurate measurement.

Reason (Ꭱ)

The potential gradient for a potentiometer of longer length with a given source of emf becomes small.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Question number: 16

» Current Electricity » Series and Parallel Combinations of Resistors

MCQ▾

Question

Which of the following statements are correct?

  1. Voltmeter should have high resistance.
  2. Ammeter should have low resistance.
  3. Voltmeter is placed in parallel across the conductor in a circuit.
  4. Ammeter is placed in parallel across the conductor in a circuit.

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

Choices

Choice (4) Response

a.

1 and 2

b.

2 and 4

c.

1, 2 and 3

d.

1 and 3

Sign In