Question

1.
A wire of length /, made of material resistivity ρ is cut into two equal parts. The resistivity of the two parts are equal to,
Single choice.

ρ

2 ρ

3 ρ

ρ/2
2.
Two devices are connected between two points say A and B in parallel. The physical quantity that will remain the same between the two points is
Single choice.

current

voltage

resistance

None of these
3.
Which of the given is the SI Unit of Electric Current?
Single choice.

Ohm

Ampere

Volt

Faraday
4.
The rate of flow of an electric charge is known as :
Single choice.

Electric potential

Electric conductance

Electric current

None of these
5.
The instrument used for measuring electric current is :
Single choice.

Ammeter

Galvanometer

Voltmeter

Potentiometer
6.
The relation between potential difference (V) and current (I) is :
Single choice.

V α I2

V α 1/I

V2 α I

V α I
7.
The SI unit of resistance is :
Single choice.

Watt

Joule

Newton

Ohm
8.
On which of the given resistance does not depend :
Single choice.

Length of conductor

Area of cross-section

Temperature

Density
9.
Conventionally, the direction of the current is taken as
Single choice.

the direction of flow of negative charge

the direction of flow of atoms

the direction of flow of molecules

the direction of flow of positive charge
10.
The unit of specific resistance is
Single choice.

ohm

ohm/metre

ohm-metre

joule​

Answer 1

Answer:

Answer: The resistivity of the two parts will be same. If we cut the wire into two equal parts then the length will be change of the wire but will not change the resistivity of the wire. Because resistivity depends upon the material of the wire.