At turn-on the initial delay or turn on delay is the time required for...
Explanation:
The initial delay or turn-on delay refers to the time required for a specific component in a circuit to reach a certain threshold value after the circuit is turned on. In this case, the question is specifically asking about the time required for the input capacitance to charge to the threshold value.
Input Capacitance
The input capacitance is a characteristic of electronic components or circuits that indicates the ability to store an electric charge. It is typically present in devices such as transistors, amplifiers, or integrated circuits.
Threshold Value
The threshold value mentioned in the question refers to a specific voltage level that needs to be reached for the circuit to function properly or for certain operations to occur.
Explanation of Answer
The correct answer is option 'B' - the initial delay or turn-on delay is the time required for the input capacitance to charge to the threshold value. This means that after the circuit is turned on, it takes a certain amount of time for the input capacitance to reach the desired voltage level.
When a circuit is turned on, there is usually a flow of current that charges the various components in the circuit. In the case of the input capacitance, it needs to accumulate a certain amount of charge to reach the threshold voltage. This charging process takes some time, and that time is referred to as the initial delay or turn-on delay.
During this initial delay period, the input capacitance gradually accumulates charge until it reaches the threshold voltage. Once the threshold voltage is reached, the circuit can start functioning as intended.
It's important to note that the other options mentioned in the question are not correct. The input inductance (option 'A') is not directly related to the initial delay or turn-on delay. Similarly, the discharge of the input inductance (option 'C') or the discharge of the input capacitance (option 'D') are not relevant to the initial delay.
In conclusion, the initial delay or turn-on delay is the time required for the input capacitance to charge to the threshold value after the circuit is turned on.