Current Electricity-Electrical Energy and Power (KVPY Stream-SA (Class 11) Physics): Questions 5 - 7 of 9

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Question number: 5

» Current Electricity » Electrical Energy and Power

Appeared in Year: 2012

MCQ▾

Question

Following figures show different combinations of identical bulb (s) connected to identical battery (ies). Which option is correct regarding the total power dissipated in the circuit?

diagrams of identical bulb(s) and battery(ies) (Circuit P)

Diagrams of Identical Bulb (S) and Battery (Ies) (Circuit P)

In figure circuit of different combination of identical bulb (s) and identical battery (ies) is down.

diagrams of identical bulb(s) and battery(ies) (Circuit Q)

Diagrams of Identical Bulb (S) and Battery (Ies) (Circuit Q)

In figure circuit of different combination of identical bulb (s) and identical battery (ies) is down.

Diagrams of identical bulb(s) and battery(ies) (Circuit R)

Diagrams of Identical Bulb (S) and Battery (Ies) (Circuit R)

In figure circuit of different combination of identical bulb (s) and identical battery (ies) is down.

Diagrams identical bulb(s) and battery(ies) (Circuit S)

Diagrams Identical Bulb (S) and Battery (Ies) (Circuit S)

In figure circuit of different combination of identical bulb (s) and identical battery (ies) is down.

Choices

Choice (4) Response

a.

P < Q < R < S

b.

P < Q < R = S

c.

R < Q < P < S

d.

P < R < Q < S

Question number: 6

» Current Electricity » Electrical Energy and Power

Appeared in Year: 2013

MCQ▾

Question

If the current through a resistor in a circuit increases by 3%, the power dissipated by the resistor,

Choices

Choice (4) Response

a.

increases approximately by 3%

b.

decreases approximately by 3%

c.

increases approximately by 6%

d.

increases approximately by 9%

Question number: 7

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

In the following circuit, the 3 Ω resistor dissipates power Pi. If the resistor is replaced by 7 Ω, the power dissipated in it is Pf, then

 Circuit of combination of three different resistors

Circuit of Combination of Three Different Resistors

In figure circuit diagram of combination of three different resistors is shown.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Question does not provide sufficient data or is vague

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