Question

3. A parallel combination of resistors is used to obtain a
a) smaller resistance
b) low voltage
c) high resistance
d) high voltage
4. A current is flowing through a wire. Then the nature of the wire is
a) positively charged
b) neutral
c) partially charged
d) negatively charged
5. Watt-hour is called........
a) one coulomb
b) one horse power
c) one volt hour
d) one volt-ampere hour
6. If a man has ten 0.1 resistors, then is the smallest resistance he can obtain by using
them.
a) 100
b) 0.01
c) 10
d) 0.10
7. While a cell is being charged, energy is converted into
energy
a mechanical, electrical
b) electrical, chemical
c) heat, electrical
d) chemical, heat
8. One horsepower (hp) is equivalent to
a) 720 watt
b) 746 watt
c) 650 watt
d) 310 watt​

Answer 1

Answer:

3.) (a.) smaller resistance.

4.) (b.) neutral.

5.) (d.)one volt - ampere hour.

6.) (b.) To obtain smaller resistance, we join in parallel, so formula is R/n => 0.1/10 => 0.01

7.) (b.) electrical to chemical.

8.) (b.) 746 watt.

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Answer 2

The correct answers are as follow:

3. A parallel combination of resistors is used to obtain a a) smaller resistance [Equivalent resistance will be smaller than the individual resistances]

4. A current is flowing through a wire. Then the nature of the wire is b) neutral [The nature of the wire does not change]

5. Watt-hour is called d) one volt-ampere hour [1 Watt-hour = 3600 J]

6. If a man has ten 0.1 resistors, then is the smallest resistance he can obtain by using is b) 0.01 [By joining them in parallel, equivalent resistance will be 0.1/10 = 0.01]

7. While a cell is being charged, energy is converted into  b) electrical, chemical [Electrical energy is converted to Chemical energy]

8. One horsepower (hp) is equivalent to b) 746 watt