Due to which of the following factors the brush wear rate is altered ?

Related Mcqs:

The formula __________ determines the number of electrons that can be accommodated in any level?

A. 2n2 B. 4n2 C. 2n3 D. 4ns...

On which of the following factors does the resistivity of a material depend ?

A. Resistance of the conductor B. Area of the conductor section C. Length of the conductor D. All of the above...

Constantan contains_______________?

A. silver and tin B. copper and tungsten C. tungsten and silver D. copper and nickel...

Carbon rods are used in wet and dry cells because_____________?

A. carbon rod serves as conductor B. carbon can resist the attack of battery acid C. both (A) and (B) D. either (A) or (B)...

Due to which of the following reasons copper and aluminium are not used for heating elements ?

A. Both have great tendency for oxidation B. Both have low melting point C. Very large length of wires will be required D. All of the above...