In the figure, the value of resistor R is $$\left(25+\frac{\mathrm I}2\right)\mathrm\Omega$$, where I is the current in amperes. The current I is _____.

A combination of 1μF capacitor with an initial voltage V_c(0) = −2V in series with a 100Ω resistor is connected to a 20 mA ideal dc current source by operating both switches at t = 0s as shown. Which of the following graphs shown in the options approximates the voltage V_s across the current source over the next few seconds?

The three circuit elements shown in the figure are part of an electric circuit. The total power absorbed by the three circuit elements in watts is ________________.

The reading of voltmeter $$(rms)$$ in volts, for the circuit shown in the figure is ______.