Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2010
Exam
AIIMS
Year
2010
Subject
Physics
Chapter
Current Electricity

AIIMS 2010 · Physics · Current Electricity

Assertion : It is advantageous to transmit electric power at high...

Assertion : It is advantageous to transmit electric power at high voltage. Reason : High voltage implies high current.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion
  3. CIf assertion is true but reason is false
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false

Step-by-step solution

As P=ViP=V i, hence for the transmission of same power, high voltage implies less current. Therefore heat energy loses (H=i2Rt/4.2)\left(H=i^2 R t / 4.2\right) are minimized if power is transmitted at high voltage.
Practice Current Electricity on Quantrex Academy →

More from Current Electricity

A potentiometer wire of 400\ cm length has a resistance of 20\ Ω . It is connected in… MHT CET Medical 2026In the following figure current I equal to MHT CET Medical 2026The range of voltmeter is 10\ V and its resistance is 50\ Ω . To convert it to a… MHT CET Medical 2026When a galvanometer is shunted with a 2\ Ω resistance, the deflection is reduced to… MHT CET Medical 2026A galvanometer can be converted into a voltmeter of certain range by connecting a… MHT CET Medical 2026A resistance is to be measured using a meter bridge; the student chooses the standard… MHT CET Medical 2026Which of the following statements is FALSE? A. In a balanced Wheatstone bridge, if the… MHT CET Medical 2026A potentiometer wire has length 4 m and resistance 8\ Ω . The resistance that must be… MHT CET Medical 2026 Full Current Electricity list All AIIMS PYQs