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A) Length

B) Weight

C) Area

D) Temperature

## 342. As the cross sectional area decrease resistance:

A) Increase

B) remains same

C) Decrease

D) Increases 2 times

## 343. Resistors used in radios have:

A) High Resistance

B) Low Resistance

C ) No Resistance

D) Resistors Are Not Used In Radios

## 344. Constantan wire is made up of:

A) 60% Copper 40% Sliver

B) 60% Silver 40% Nickel

C) 50% Bronzes 50% Copper

D) 60% Copper 40% Nickel.

A) 1 Ὼ

B) 2 Ὼ

C) 4 Ὼ

­­­) 5 Ὼ

## 346. When resistos are connected end to end in such a way that there is a single path for flow of current are said to be connected in:

A) Series Connection

B) Parallel Connection

C) Both A and B

D) None of the above.

## 347. In series combination the equivalent resistance is always ______- than individual resistance in combination.

A) Equal

B) Less

C) Greater

D) not determined.

## 348. Conductors which obey Ohm’s law is called:

A) Resistors

B) Capacitors

C) Ohmic Conductors

D) Semi Conductors

## 349. When the potential difference is doubled, the current through metallic conductor’s _______.

A) Decreases

B) Remain Constant

C) Doubles

D) Increases 4 Times

## 350. In the filament of bulb, current saturates as it is increases and at large calve even a large change in voltage V will show ________ change in current.

A) Large

B) Small

C) NO

D) No current passes through.

A) Length

B) Area

C) Temperature

D) Material

## 352. The resistance of thermistor ______ with increase in temperature.

A) Increases

B) Remains constant

C) Decrease

D) Increases and decreases afterwards

## 353. The Electrical energy lost in device due to potential difference across it can be represented as equation:

A) Joules law of Heating

B) Law of thermodynamics

C) Ohm’s Law

D) Boyle law.

## 354. The amount of heat generated in resistor is proportional to the product of square of:

A) Resistance

B) current

C) time of current passes

D) all of the above.

## 355. The time rate at which work is done in electric circuit is called:

A) Potential Difference

B) Electric power

C) Current

D) None of the above

## 356. The electric metre in our homes measures:

A) how much energy is used

B) Electrical power

C) Current passing through device

D) Voltage applied

A) Fuse

B) Power Supply

C) Earth

D) Lamp

## 358. Safety device that blows/ melts if excess current tries to enter the electrical appliance.

A) Safety

B) Fuse

C) Lamp

D) None of the above

## 359. The zero volt connection

A) Negative connection

B) Positive connection

C) Earth

D) All of the above

A) Lamp

B) Bulb

C) Fuse

D) Both A and B