$\overline{){\mathbf{\tau}}{\mathbf{=}}{\mathbf{R}}{\mathbf{C}}}$

Question 1: In an RC circuit, what is the name of the quantity represented by the symbol τ?

A. The characteristic time.

B. The decay constant.

C. The time constant.

D. The resistive component.

Question 2: If the resistance in an RC circuit doubles, the value of τ will be?

A. Double its original value.

B. Half its original value.

C. Four times its original value.

D. One-fourth its original value.

Question 3: If the capacitance of an RC circuit is cut in half, the value of τ will be?

A. One half its original value.

B. Double its original value.

C. One-quarter its original value.

D. Four times its original value.

Question 4: As a capacitor discharges, the potential difference across the capacitor will?

A. Increase exponentially.

B. Decrease linearly.

C. Increase linearly.

D. Decrease exponentially.

Question 5: A cell membrane acts like a?

A. Resistor.

B. Capacitor.

C. resistor and a capacitor.

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