Recent questions

0 like 0 dislike

1 answer 268 views

How many watt-hours are there in 1000 joules?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 3.7k views

In order to measure voltage in a circuit, voltmeter is always connected in parallel. Discuss.

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 123 views

In order to measure current in a circuit, why ammeter is always connected in series?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 253 views

Two points on an object are at different electric potential. Does charge necessarily flow between them?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 2.6k views

Can current flow in a circuit without potential difference?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 252 views

What is the difference between a cell and a battery?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 223 views

Why in conductors charge is transferred by free electrons rather than by positive charge?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 607 views

A light bulb is switched on for 40s. If the electrical energy consumed by the bulb during this time is 2400 J,

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 96 views

Connect a battery to a small 2.5V light bulb and observe the brightness of the bulb.

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 466 views

A bird can sit harmlessly on high tension wire- But it must not reach and grab neighbouring wire. Do you know why?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 506 views

Which metal is used as the filament of an electric bulb? Explain with reason.

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 449 views

How long does it take a current of 10 mA to deliver 30 C of charge?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 523 views

Describe some safety measures that should be in connection with the household circuit.

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 132 views

How does short circuit occur and how can it be avoided?< .

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 231 views

Describe briefly the hazards of household electricity.

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 1.4k views

Why is the voltage used for domestic supply much lower than the voltage at which the power is transmitted?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

0 like 0 dislike

1 answer 104 views

The voltage chosen for the transmission of electrical power over large distances ,

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 149 views

Define the term time period and frequency.

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 177 views

What is difference between d.c. and a.c.?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

0 like 0 dislike

1 answer 108 views

How can the cost of electricity consumed in a house be calculated?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

Categories