why capacitor has negative sign in electric circuit?
Answers
Answer:
Because a multimeter outputs a small constant current to measure resistance, then measures the voltage across that component to give the resistance. ... E.g. the capacitor is causing current to flow the opposite way in your case meaning V=IR gives a negative value.
Answer:
Because a multimeter outputs a small constant current to measure resistance, then measures the voltage across that component to give the resistance.
V=IR so if I is constant then V is proportional to resistance.
However if you measuring a Capacitor that is charged (or any component while it is IN a circuit) it could change that constant current by adding to it resulting in an incorrect value. E.g. the capacitor is causing current to flow the opposite way in your case meaning V=IR gives a negative value.