2. Electric fuse is the strongest point in an
electric circuit, which melts but does not
break the circuit in case of faulty electric
circuit.
3. The earth does not offer any resistance,
when current flows into it.
4. Conventional current flows from the negative
terminal of the power source to the positive
terminal.
5. The consumer pays the cost of electrical
energy consumed in unit of kilowatt hour
(kWh). true or false
Answers
Explanation:
2. fuse is a small, thin conductor designed to melt and for the purpose of breaking a circuit in the event of excessive current. During a short circuit, excessive current flows through the circuit which may damage the device and components. They are always connected in series with the components to be protected from overcurrent, so that when the fuse blows it will open the entire circuit and stop current through the components.
3. But, it's never at equal potential to Earth. So, Earth doesn't setup any type of circuit with source. It merely maintains a potential difference which is the only thing necessary for current flow.
4. The flow of electrons is termed electron current. Electrons flow from the negative terminal to the positive. Conventional current or simply current, behaves as if positive charge carriers cause current flow.
5. The kilowatt-hour is a composite unit of energy equal to one kilowatt (kW) of power sustained for one hour. Expressed in the standard unit of energy in the International System of Units (SI), the joule (symbol J), it is equal to 3600 kilojoules (3.6 MJ).
answer
2 False. 3true 4 false 5 false