A 138 resistor is connected to a signal generator at 7 volts maximum, 27 H frequ

Question

A 138 resistor is connected to a signal generator at 7 volts maximum, 27 H frequency z The phase angle between the current and voltage across the resistor is (approximately): 30 45 60 90 And the current the voltage. The magnitude of the maximum current in the circuit is mA and the phase shift between the current and the voltage across the resisto If the generator frequency is increased the maximum current f another resistor of the same value is added to the circuit in parallel to the original tor, the maximum current through the circuit W O not change because the current in second resistor will be TT/2 out of phase with the original current through the first resistor cause the current in second resistor will be TT out of phase decrease with the current through the first resistor increase by x2 decrease by x2 not change because AC current will not branch into second resistor in second resistor slightly out of phase first resistor se because the current will be with the current through the

Explanation / Answer

in a resistor , Voltage and current overlap in phase , hence phase ange is 0

maximum current = maximum Voltage / resistance = 7 / 138 = 0.0507 A = 50.7 mA

frequency has no effect on the maximum current , so increasing the frequency will not change the maximum current and phase angle

the current will decrease as the total resistance has becomes double. so current reduces to half

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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