Question:

A conductor and a semi-conductor are connected in parallel as shown in the figure. At a certain voltage both ammeters registers the same current. If the voltage of the DC source is increased then

Updated On: Jan 30, 2025
  • the ammeter connected to the semiconductor will register higher current than the ammeter connected to the conductor
  • the ammeter connected to the conductor will register higher current than the ammeter connected to the semiconductor
  • the ammeters connected to both semiconductor and conductor will register the same current
  • the ammeter connected to both semiconductor and conductor will register no change in the current
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is C

Solution and Explanation

If the voltage of the DC source is increased then both conductor and semiconductor registers same current i.e., semiconductor is in forward biased condition and it conducts. So, ammeters connected to both semiconductor and conductor will register the same current.
Was this answer helpful?
0
0

Concepts Used:

Semiconductors

Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.

Properties of Semiconductor:

  1. Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
  2. Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
  3. Lesser power losses.

Uses of Semiconductor:

  1. Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
  2. Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.