Physics/CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 3 Current Electricity) Sample Test,Sample questions

Question:
A charge is moving across a junction, then

1. momentum will be conserved.

2.momentum will not be conserved.

3.at some places momenturii will be conserved and at some other places momentum will not be conserved.

4.none of these.


Question:
An electric heater is connected to the voltage supply. After few seconds, current gets its steady value then its initial current will be

1.equal to its steady current

2.slightly higher than its steady current

3.slightly less than its steady current

4. zero


Question:
 In the series combination of two or more than two resistances

1.the current through each resistance is same.

2.the voltage through each resistance is same.

3.neither current nor voltage through each re-sistance is same.

4.both current and voltage through each resis¬tance are same.


Question:
Combine three resistors 5 Q, 4.5 Q and 3 Q in such a way that the total resistance of this combination is maximum

1.12.5 Q

2.13.5 Q

3.14.5 Q

4.16.5 Q


Question:
In a potentiometer of 10 wires, the balance point is obtained on the 7th wire. To shift the balance point to 9th wire, we should

1. decrease resistance in the main circuit.

2. increase resistance in the main circuit.

3.decrease resistance in series with the cell whose emf is to be measured.

4. increase resistance in series with the cell whose emf is to be determined.


Question:
In a Wheatstone bridge if the battery and galvanometer are interchanged then the deflection in galvanometer will

1.change in previous direction

2.not change

3. change in opposite direction

4.none of these.


Question:
In parallel combination of n cells, we obtain

1. more voltage

2.more current

3. less voltage

4.less current


Question:
The resistivity of alloy manganin is

1.Nearly independent of temperature

2.Increases rapidly with increase in temperature

3.Decreases with increase in temperature

4. Increases rapidly with decrease in temperature


Question:
When a metal conductor connected to left gap of a meter bridge is heated, the balancing point

1.shifts towards right

2. shifts towards left

3.remains unchanged

4.remains at zero


More MCQS

  1. Physics nobel prize winners
  2. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter -1 Electric Charges and Fields)
  3. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 2 Electrostatic Potential and Capacitance)
  4. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 3 Current Electricity)
  5. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 4 Moving Charges and Magnetism)
  6. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 5 Magnetism and Matter)
  7. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 6 Electromagnetic Induction)
  8. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 7 Alternating Current)
  9. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 8 Electromagnetic Waves)
  10. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 9 Ray Optics and Optical Instruments)
  11. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 10 Wave Optics)
  12. CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter 11 Dual Nature of Radiation and Matter)
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!