Question

In R-C circuit when charge on the plates of the capacitor is increasing, the energy obtained from the sources is stored in________________
a. Electric Field
b. Magnetic Field
c. Gravitational Field
d. Both magnetic and gravitational field

Answer 1

Hint: When the R-C circuit charged up the graph rises gradually and is much steeper at the beginning because the charging rate is at the fastest at the start of the charge but then tapers off exponentially as the capacitor takes on additional charge at a slower rate. So, when charge on the plates of the capacitor is increasing, the energy obtained from the sources is stored in an electric field.

Complete step by step answer:
The work of the capacitor is to store energy and a resistor placed in a series combination to control the rate at which the circuit charges or discharges. The electrical charge stored on the plates of the capacitor is given as: ${\text{Q = CV}}$.
It takes a certain amount of time to charge and discharge the energy from the capacitor. If the resistor is connected in series with the capacitor forming the R-C circuit, the capacitor charges up gradually through the resistor until the voltage across it reaches that supply of voltage. R-C circuit: R-C circuit is composed of a resistor and a capacitor. It is used to filter a signal by blocking certain frequencies and passing others. R-C circuit is used in camera flashes, pacemakers, etc.

Hence, the correct answer is option (A).

Note:
Resistor: It is a two-terminal electrical component that causes electrical resistance as a circuit element, it is used to reduce the current flow. When an electrical charge passes through a resistor, some of the electrical energy gets transformed into heat energy. This extra energy causes the particles to vibrate more. Therefore, the resistances of a resistor increase with the increase of temperature.

Capacitor: It is two terminal devices used to store electrical energy in an electric field. The area of the capacitor plates increases then the capacitance of the capacitor also increases and vice-versa.