COMEDK 2023 Evening Shift | Current Electricity Question 20 | Physics

A resistor of wire $$24 \mathrm{~cm}$$ length and resistance $$8 \Omega$$ is stretched in to a uniform wire of $$48 \mathrm{~cm}$$ length, then the new resistance will be :

$$32 \Omega$$

$$8 \Omega$$

$$16 \Omega$$

$$4 \Omega$$

COMEDK 2023 Evening Shift

MCQ (Single Correct Answer)

-0

The SI unit of electrical conductivity is :

S m

$$\Omega \mathrm{~m}$$

$$\mathrm{S} \mathrm{~m}^{-1}$$

$$\Omega \mathrm{~m}^{-1}$$

COMEDK 2023 Evening Shift

MCQ (Single Correct Answer)

-0

The current passing through the 100$$\Omega$$ resistor in the given electrical circuit is :

COMEDK 2023 Evening Shift Physics - Current Electricity Question 16 English

0.08 A

0.01 A

0.1 A

0.12 A

COMEDK 2023 Evening Shift

MCQ (Single Correct Answer)

-0

A battery is made of 12 cells having emf $$5 \mathrm{~V}$$ each. If three cells are unknowingly connected wrong, the resultant emf of the battery will be:

90V

30V

60V

45V

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