14. Four equal-value resistors are in series with a 12 V battery and 13.63 mA are measured. The value of each resistor is ________.
(a) 22 Ω (b) 220 Ω (c) 880 Ω (d) 88 Ω
Answer
Answer : (b)
Explanation
Explanation : Total Resistance, r = 12 / 13.63 = 0.880 in ohms Total Resistance, r= 880 Each resistance value = r/4 = 880/4 Each resistance value = 220 ohms.
5555555555 22. A 12 V battery is connected across a series combination of 68 Ω, 47 Ω, 220 Ω, and 33 Ω. The amount of current is ________. (a) 326 mA (b) 16.3 mA (c) 32.6 mA (d) 163 mA
5555555555 15. A series circuit has a 24 V source and a total resistance of 120 Ω. The current through each resistor is ________. (a) 24 mA (b) 200 mA (c) 120 mA (d) 20 mA
5555555555 16. A balanced Wheatstone bridge consists of an RV of 3,500 Ω, an R2 of 200 Ω, and an R3 of 680 Ω. The value of RUNK is ________. (a) 680 Ω (b) 1,029 Ω (c) 200 Ω (d) 880 Ω
5555555555 12. Three 680 Ω resistors are connected in series with a 470 V source. Current in the circuit is ________. (a) 69 mA (b) 230 mA (c) 23 mA (d) 690 mA
5555555555 9. A 47 Ω resistor and a capacitor with 150 Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is ________. (a) Z = 47 Ω + j150 Ω (b) Z = 47 Ω – j150 Ω (c) Z = 197 Ω (d) Z = 103 Ω