Home

A wire of one kilometre length has a resistance of 20 . If the length is halveda then the new resistance is ___ the original resistance.

A. Half

B. Twice

C. One-fourth

D. Three times

Related Questions

  1. When two coils of identical reactance are in parallel without mutual inductancea the reactance of the…
  2. If the capacitance of mica capacitor is 5 times the capacitcitora then the relative permittivity of…
  3. A 5 F capacitor charge to 5V has a stored charge equal to
  4. In an RL series circuita
  5. The curve between current and frequency is termed as
  6. When resistance are connected in parallela the total resistance is
  7. What dielectric is generally employed by a variable capacitor?
  8. In a complex resistance-reactance planea XLis represented
  9. For greater accuracya the value of phase angle should be determined from
  10. If resonant frequency is 10 kHz and quality factor is 50a then
  11. Which of the following is not a factor affecting dielectric strength?
  12. What determines the direction of induced emf in a conductor or coil?
  13. Loop currents should be assumed to flow in which direction
  14. What is the peak factor for alternating current or voltage varying sinusiodally?
  15. Which of the following is a disadvantage of a wire-wound resistor?
  16. An alloy composed of 84 % coppera 12 % manganese and 4 % nickel.
  17. Which of the following is not considered a physical factor affecting resistance?
  18. The superposition theorem is used when the circuit contains
  19. What fusion of elements is without chemical action between them?
  20. The Q-factor of a parallel resonant circuit is also known as
  21. A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by
  22. The impedance in the study of electronics is represented by resistan
  23. A resistor wound with a wire doubled back on itself to reduce the inductance.
  24. A capacitance of 0.05 F equals
  25. In a series RLCcircuit
  26. What is the other name of relative permittivity?
  27. If two equal resistances connected in series across a certain supply are now connected in parallel across…
  28. For a linear circuita ___ voltage or current is used to calculate average power.
  29. The voltage cannot be exactly in phase with the current in a circuit that contains
  30. What is the reading of an ohmmeter for a shorted capacitor?

Please do not use chat terms. Example: avoid using "grt" instead of "great".