Is a motor starter a variable R or L or C ?

A motor starter is a

A: When an electric motor is started, a variable resistance (that decreases with time) is used in series. This resistance is known as motor slarter, R: The back-emf in the beginning, when motor starts, is very small.

A: When an electric motor is started, a variable resistance (that decreases with time) is used in series. This resistance is known as motor slarter, R: The back-emf in the beginning, when motor starts, is very small.

IF l and m are variable real numbers such that 5l^2-4lm+6m^2+3l=0 , then the variable line lx+my=1 always touches a fixed parabola, whose axis is parallel to the X-axis. If (c,d) is the focus of the parabola , then the value of 2^|d-c| is

If l and m are variable real numbers such that 5l^2-4lm+6m^2+3l=0 , then the variable line lx+my=1 always touches a fixed parabola, whose axis is parallel to the X-axis. If (c,d) is the focus of the parabola , then the value of 2^|d-c| is

When starter motor of a car is switched on for 0.8 s , a charge 24 C passes through the coil of the motor. Calculate the current in the coil.

In the given figure , a series L-C-R circuit is connected to a variable frequency source of 230 V . The impedance and amplitude of the current at the resonating frequency will be

In the given figure , a series L-C-R circuit is connected to a variable frequency source of 230 V . The impedance and amplitude of the current at the resonating frequency will be