How does use of a fuse wire protect electrical appliances?
How does use of a fuse wire protect electrical appliances?
If a current larger than a specified value flows in a circuit, temperature of fuse wire increases to its melting point. The fuse wire melts and the circuit breaks.
Similar Questions
$(a)$ Nichrome wire of length $L^{\prime}$ and radius ${ }^{\prime} R^{\prime}$ has resistance of $10\, \Omega$. How would the resistance of the wire change when
$(i)$ only length of the wire is doubled ?
$(ii)$ only diameter of the wire is doubled ? Justify your answer.
$(b)$ Why element of electrical heating devices are made$-$up of alloys ?
$(a)$ Nichrome wire of length $L^{\prime}$ and radius ${ }^{\prime} R^{\prime}$ has resistance of $10\, \Omega$. How would the resistance of the wire change when
$(i)$ only length of the wire is doubled ?
$(ii)$ only diameter of the wire is doubled ? Justify your answer.
$(b)$ Why element of electrical heating devices are made$-$up of alloys ?
$Ohm's$ law is a relation between the power used in a circuit to the current and the potential difference.
$Ohm's$ law is a relation between the power used in a circuit to the current and the potential difference.
An electric heater rated $1200\, W$ operates $2$ hour per day. Find the cost of the energy required to operate it for $30$ days at ₹ $5.00$ per unit.
An electric heater rated $1200\, W$ operates $2$ hour per day. Find the cost of the energy required to operate it for $30$ days at ₹ $5.00$ per unit.
You are given three equal resistors. The number of resistances which can be obtained by joining them in series and in parallel grouping is
You are given three equal resistors. The number of resistances which can be obtained by joining them in series and in parallel grouping is
A series circuit has only one conducting path for the electrons that move through it; a paralle circuit has multiple conducting paths.
A series circuit has only one conducting path for the electrons that move through it; a paralle circuit has multiple conducting paths.