3. Specify the correct statements: Pulse current is called a short-term change in voltage The steepness of pulse front is a dimensionless value Pulse current is characterizec I by a pulse repetition period, that is equal to the average time between the beginnings of neighboring pulses The characteristic of the pulse current equal to the ratio of the pulse duration to the period is called the duty factor

The correct statements are:<br /><br />1. The steepness of pulse front is a dimensionless value.<br />2. The characteristic of the pulse current equal to the ratio of the pulse duration to the period is called the duty factor.<br /><br />The pulse current is not defined as a short-term change in voltage, and the pulse repetition period is not necessarily equal to the average time between the beginnings of neighboring pulses.