Current Electricity (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 73 - 76 of 77

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Question number: 73

» Current Electricity » Electric Cell and Its Internal Resistance

Assertion-Reason▾

Assertion (Ꭺ)

In the circuit shown, Equation , if Equation

Circuit of battery and resistance.

Circuit of Battery and Resistance.

In figure 4V battery connected to 2Ω resistor between a and b.

Reason (Ꭱ)

Potential difference across terminals of a non-ideal battery is less than its emf when i current flow through it.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are 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 true but Ꭱ is NOT the correct explanation of Ꭺ

Question number: 74

» Current Electricity » Electric Cell and Its Internal Resistance

Assertion-Reason▾

Assertion (Ꭺ)

A larger dry cell has higher emf.

Reason (Ꭱ)

The emf of a dry cell is independent of its size.

Choices

Choice (4) Response

a.

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

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

Question number: 75

» Current Electricity » Ohm's Law

Appeared in Year: 2016

MCQ▾

Question

A filament bulb Equation is to be used in a Equation main supply. When a resistance Equation is connected in series, it works perfectly and the bulb consumes Equation . The value of Equation is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 76

» Current Electricity » Temperature Dependence of Resistance

Appeared in Year: 2017

MCQ▾

Question

Two rods Equation and Equation of different materials are welded together as shown in figure. Their thermal conductivities are Equation and Equation . The thermal conductivity of the composite rod will be

Two rods A and B are connected

Two Rods a and B Are Connected

In figure two rods A and B are welded together as shown in figure.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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