19. Four equal-value resistors are connected in parallel. Ten volts are applied across the parallel circuit and 2 mA are measured from the source. The value of each resistor is ________.
(a) 12.5 Ω (b) 200 Ω (c) 20 KΩ (d) 50Ω
Answer
Answer : (c)
Explanation
Explanation : 10/(R/4) = 2 mA 40/R = 2 mA R = 40/2 mA = 40/0.002 A = 20000 kohm (20 kohm)
Product Condition: No Defects; Kulshreshtha, D C (Author); English (Publication Language); 880 Pages - 07/01/2017 (Publication Date) - McGraw Hill Education (Publisher)
5555555555 3. When a 1.6 kΩ resistor and a 120 Ω resistor are connected in parallel, the total resistance is ________. (a) greater than 1.6 kΩ (b) greater than 120 Ω but less than 1.6 kΩ (c) less than 120 Ω but greater than 100 Ω (d) less than 100 Ω
5555555555 22. Three 10 kΩ resistors are connected in series. A 20 kΩ resistor is connected in parallel across one of the 10 kΩ resistors. The voltage source is 24 V. The total current in the circuit is ________. (a) 900 μA (b) 9 mA (c) 90 mA (d) 800 μA
5555555555 7. The following resistors are in parallel across a voltage source: 220 Ω, 470 Ω, and 560 Ω. The resistor with the least current is ________. (a) 220 Ω (b) 470 Ω (c) 560 Ω (d) impossible to determine without knowing the voltage
5555555555 18. Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor? (a) 4 Ω (b) 400 Ω (c) 4 kΩ (d) 4.4 Ω
5555555555 11. Six resistors are in parallel. The two lowest-value resistors are both 1.2 kΩ. The total resistance ________. (a) is less than 6 kΩ (b) is greater than 1.2 kΩ (c) is less than 1.2 kΩ (d) is less than 600 Ω