Question

If a battery’s voltage stays the same and you increase the resistance of the resistor, what will happen to the current resistor?

If the battery is changed for another of higher voltage and the resistance of the resistor stays the same, what happens to the current in the resistor?

Do the electrons lose energy in collisions? If so, what happens to that energy?

If you increase the flow of current in the conductor, will there be more electron/atom collisions? If so, what do you think will happen to the conductor?

If you keep the same batteries but reduce the resistance in the wire how is the number of electron/atom collisions changed?

A fuse is a device that opens or breaks a circuit to prevent the flow of too much current. It is simply a strip of metal with a low melting point. How does it work?

Answer 1

a) for constant voltage, on increasing resistance current decreases considering Ohm's law.

b) current also increases.

c) yes, and that energy transform into heat energy.

d) yes, collision increases as the speed of the particles increases. the conductor started heating.

e) current through the wire increases, and this increase will increase the collision rate.

f) when a higher value of current which can damage our appliances flows through the strip, the heating effect of current comes into play.After a predefined safe value of current, strip started toheat and melts itself in order to open the circuit amd hence our appliance are under safety measure on introducing fuse.

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