What is the current in the circuit with a resistance of 8 ohms, inductive reactance of 12 ohms, capacitive reactance of 18 ohms with 20 volts applied across it?
- 10 amps.
- 1 amp.
- 2 amps.
Explanation
Impedance is Z = square root of (R squared plus (XL minus XC) squared) = square root of (8 squared plus (12 minus 18) squared) = square root of (64 plus 36) = 10 ohms. The current is then I = V / Z = 20 / 10 = 2 amps.
kufu asking:
Can anyone explain me this one...?
Community Comments (2)
M
markino87 Posts: 4 09.10.2012 / 12:43
doing xl-xc u'll find the Xtot
doing square root of(R^2+X^2) u'll find the impedance
doing V/R u'll find the current
chiaro:)
doing square root of(R^2+X^2) u'll find the impedance
doing V/R u'll find the current
chiaro:)
B
bigbear Posts: 3 26.07.2024 / 05:20
COULD PLEASE EXPLAIN WHAT IS xl-xc??
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