When crossing a resistor in the opposite direction of the current, the potential

Question

When crossing a resistor in the opposite direction of the current, the potential difference of the resistor is

___zero

___positive

___negative

When an uncharged capacitor is connected in series to a resistor and a battery, the charge on the capacitor

__stays zero

___ is constant and non-zero

___increases until it reaches a maximum value

___increases without limit

The time constant of an RC circuit depends on

i.  The resistance

ii. The capacitance

iii.  The battery voltage

___ ii and iii

___ i, ii, and iii

___ i and ii

___ i and iii

Explanation / Answer

1) When you cross a resistor in the same direction as the current, that's also a drop in potential so it's a negative change in potential. Crossing a resistor in the opposite direction as the current gives you a positive change in potential.

2) When an uncharged capacitor is connected in series to a resistor and a battery, the charge on the capacitor increases until it reaches a maximum value.

3) The time constant of an RC circuit depends on The resistance and capacitance.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.