Solved papers for 12th Class Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Assertion And Reason (MCQs) - Current Electricity

done Assertion And Reason (MCQs) - Current Electricity Total Questions - 13

• question_answer1) 

  Directions (Q. No.1 to 13): In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.

  Assertion (A): Fuse wire has high resistance and low melting point.

  Reason (R): Fuse wire is for small current flow only.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer2) 

  Assertion (A): Electric appliance with metal body has three electrical connections. But an electrical bulb has two electrical connection.

  Reason (R): Three pin connection reduces chances of electrical shocks.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer3) 

  Assertion (A): The resistance of superconductor is zero.

  Reason (R): Super conductors are used for electrical power transmission.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer4) 

  Assertion (A): The same amount of current flows through the filament and line wire. But more heat is produced in filament.

  Reason (R): Filament is made of material having high resistance and high melting point.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer5) 

  Assertion (A): Power rating of resistance is not so important when used in a circuit.

  Reason (R): The resistance value changes with temperature.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer6) 

  Assertion (A): Kirchhoff's junction rule is applicable for any number of lines meeting at a point in an electrical circuit.

  Reason (R): When there is a flow of steady current, then there is no accumulation of charge at the junction.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer7) 

  Assertion (A): Kirchhoff's voltage law indicates that the electric field is conservative.

  Reason (R): Potential difference between two points in a circuit does not depend on the path.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer8) 

  Assertion (A): In balanced condition, if the galvanometer and the voltage source is interchanged, the balanced condition remains same.

  Reason (R): The balanced condition of Wheatstone bridge does not depend on the value of the resistances.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer9) 

  Assertion (A): In balanced condition of a Wheatstone bridge, there is no current flow through the galvanometer

  Reason (R): The potential of point B and D are same.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer10) 

  Assertion (A): A high resistance is connected in series with the galvanometer of Meter Bridge.

  Reason (R): As resistance increases, the current also increases.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer11) 

  Assertion (A): Meter bridge wire is generally made of Constantan.

  Reason (R): Constantan has a very low temperature coefficient of resistance.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer12) 

  Assertion (A): The balancing point of a meter bridge is obtained at L = 40 cm. When the area of cross-section of the wire of is doubled, the balancing point shifts to L = 60 cm.

  Reason (R): Resistance of wire is directly proportional to its area of cross - section.

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow

• question_answer13) 

  Assertion (A): Potentiometer is used to measure the e.m.f. of a cell.

  Reason (R): Potentiometer is preferred over voltmeter to measure the e.m.f. a cell since it does not draw any net current from the cell

  A)
  Both A and R are true and R is the correct explanation of A
  done clear
  B)
  Both A and R are true but R is NOT the correct explanation of A
  done clear
  C)
  A is true but R is false
  done clear
  D)
  A is false and R is true
  done clear
  View Answer play_arrow