An ac source of 50 V (r.m.s value) is connected across a series R - C circuit. If the r.m.s voltage across the resistor is 40 V , then the r.m.s voltage across the capacitor is

Question

An ac source of 50 V (r.m.s value) is connected across a series R - C circuit. If the r.m.s voltage across the resistor is 40 V , then the r.m.s voltage across the capacitor is, 10 V, 20 V, 30 V, 40 V

MARKS App · Accepted Answer

For an R - C circuit Applied voltage, V = V R 2 + V C 2 ∴ 50 = 40 2 + V C 2 ⇒ V C = 30 V

Search any question & find its solution

Looking for more such questions to practice?