Current Electricity-Electrical Resistance (NEET Physics): Questions 5 - 8 of 9

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Question number: 5

» Current Electricity » Electrical Resistance

MCQ▾

Question

In the fig. shown, Calculate the current through 3 ohm resistor. The emf of battery is 2 volt and its internal resistance is 23 ohm.

Circuit diagram of 3Ω, 6Ω, 2Ω, 4Ω, 8Ω resistors

Circuit Diagram of 3Ω, 6Ω, 2Ω, 4Ω, 8Ω Resistors

In above figure 6 different resistors connected between point A and B. And 2V battery connected with it.

Choices

Choice (4) Response

a.

0.44 am.

b.

0.33 amp

c.

1.22 amp

d.

0.88 amp

Question number: 6

» Current Electricity » Electrical Resistance

MCQ▾

Question

The equivalent resistance of the following infinite network of resistance is

Network of equal resistance 2Ω

Network of Equal Resistance 2Ω

Figure shows the infinite network of equivalent resistance of 2Ω.

Choices

Choice (4) Response

a.

12 Ω

b.

Less than 4 Ω

c.

More than 4 Ω but less than 12 Ω

d.

4 Ω

Question number: 7

» Current Electricity » Electrical Resistance

MCQ▾

Question

How will reading in the ammeter Switch. A be affected if another identical bulb Q is connected in parallel to P as shown in the figure? The voltage in the mains is maintained at constant value

Circuit with bulbs P and Q, Ammeter and switch

Circuit With Bulbs P and Q, Ammeter and Switch

In circuit two bulbs P and Q are connected in parallel.

Choices

Choice (4) Response

a.

The reading will increase four fold.

b.

The reading will be double of previous one.

c.

The reading will not be affected.

d.

The reading will be reduced to one half.

Question number: 8

» Current Electricity » Electrical Resistance

MCQ▾

Question

The current in the given circuit will be

 Circuit Diagram with equal 30Ω resistance

Circuit Diagram With Equal 30Ω Resistance

Here three equal resistor of 30 Ω connected with 2 V battery as shown in figure.

Choices

Choice (4) Response

a.

15A

b.

110A

c.

145A

d.

115A

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