help@askiitians.com

+91-87964 74404

Grade 10Electric Current

how does the melting point and specific resiatnce of a wire decided?
why should the resistance be more while the melting point is less in the fuse wire?
what is the main differece between melting point and the specific resiatance?

Pushkar Ranjan

8 Years agoGrade 10

1 Answer

Vikas TU

6 Years ago

Dear student

Resistance is more in fuse wire so that to pass less current .

as you know

H = i^2Rt

So as less current less heat will be generated .

Melting point is less because as to wire can melt quckly , so that we can avoid short circuit.

The fig. Shows a network of resistance in which the point A is earthed

electric current

0 Answer Available

Last Activity: 4 Years ago

When a p.d of 2v is applied across a resistor, 10j of energy are covered. What charge flows through the resistor?

electric current

0 Answer Available

Last Activity: 4 Years ago

Please provide it's solution. In video form
Find the equivalent resistance of the given figure

electric current

1 Answer Available

Last Activity: 4 Years ago

The resistivity of material is 10 ohm m at 30 C when the temperature drops to 28 then the resistivity drops by 2. The temperature coefficient of resistivity of material is

electric current

1 Answer Available

Last Activity: 4 Years ago

Three cells of 2.0v each and internal resistance of 1.0 each are connected in series and in parallel calculate the new emf and new internal resistance in each connection

electric current

1 Answer Available

Last Activity: 4 Years ago

View all Questions