Quiz on Rocket 1

Posted By: Sonali Mahant

Date: January 17, 2025

Category:

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This is a timed quiz. You will be given 120 seconds per question. Are you ready?

120

0%

When P = Power, V = Voltage, I = Current, R = Resistance and G = Conductance, which of the following relation is incorrect?

I =√ (P / R)

V = √ (PR)

G= P / I2

none

Correct! Wrong!

Resistance of a wire is r ohms. The wire is stretched to double its length, then its resistance in ohms is

r / 2

4 r

none

2 r

Correct! Wrong!

Conductance is expressed in terms of

joule/sec

mho

ohm / m

Peru

Correct! Wrong!

Four identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be

1 / 16 times

none

4 times

16 times

Correct! Wrong!

The unit of electrical conductivity is

mho / metre

mho / sq. m

ohm / sq. m

none

Correct! Wrong!

Which method can be used for absolute measurement of resistances ?

Lortentz method

none

Wheatstone bridge method

Releigh method

Correct! Wrong!

Ohm's law is not applicable to

none

Correct! Wrong!

Quiz on Rocket 1

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