Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
The fuse helps to control the maximum current in an electrical circuit. The fuse protects an electrical circuit by melting and breaking the circuit, whenever the current exceeds the pre-determined limit in the circuit. Due to low melting point, the fuse wire melts and then breaks the circuit.
APPEARS IN
संबंधित प्रश्न
Draw the electrical symbols of the following components and state its use:
Ammeter.
An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each and a plug key was set up.
(i) Draw a diagram of this electric circuit to study the relation between the potential difference maintained between the points 'X' and 'Y' and the electric current flowing through XY.
State two differences between the e.m.f. and terminal voltage of a cell.
Tick(✓) the correct choice in the following:
A three pin plug is connected to the lead for a 1 kW electric iron to be
used on a 250 V supply. Which of the following statements is not correct?
A bulb of 40 W is used for 12.5 h each day for 30 days. Calculate the electrical energy consumed.
What is meant by internal resistance of a cell?
Electric current is defined as:
In semiconductors, the charge carriers are:
The direction of Direct Current (DC) is characterized as:
