JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank

done Graphical Questions Total Questions - 9

• question_answer1)
  In a copper voltameter, mass deposited in 30 second is m gm. If the time-current graph is as shown in figure, ECE of copper is
  A)
             m done clear
  B)
             \[m/2\] done clear
  C)
             0.1 m done clear
  D)
             0.6 m done clear
  View Solution play_arrow

• question_answer2)
    Which of the following plots may represent the thermal energy produced in a resistor in a given time as a function of the electric current                                                  [MP PMT 1999]
  A)
             a done clear
  B)
             b done clear
  C)
             c done clear
  D)
             d done clear
  View Solution play_arrow

• question_answer3)
  Two different metals are joined end to end. One end is kept at constant temperature and the other end is heated to a very high temperature. The graph depicting the thermo e.m.f. is                                           [DCE 2000]
  A)
                                         done clear
  B)
                                  done clear
  C)
                                          done clear
  D)
  done clear
  View Solution play_arrow

• question_answer4)
  Which of the following graphs shows the variation of thermoelectric power with temperature difference between hot and cold junction in thermocouples
  A)
                                      done clear
  B)
                              done clear
  C)
                                      done clear
  D)
                              done clear
  View Solution play_arrow

• question_answer5)
  When an electric heater is switched on, the current flowing through it (i) is plotted against time (t). Taking into account the variation of resistance with temperature, which of the following best represents the resulting curve
  A)
                                    done clear
  B)
  done clear
  C)
                                          done clear
  D)
                              done clear
  View Solution play_arrow

• question_answer6)
  The V-i graphs A and B drawn for two voltameters. Identify each graph
  A)
             A for water voltameter and B for \[Cu\] voltameter done clear
  B)
             A for \[Cu\] voltameter and B for water voltameter done clear
  C)
             Both A and B represents \[Cu\] voltameter done clear
  D)
             None of these done clear
  View Solution play_arrow

• question_answer7)
  A constant current i is passed through a resistor.  Taking the temperature coefficient of resistance into account, indicate which of the plots shown in figure best represents the rate of production of thermal energy in the resistor
  A)
             a done clear
  B)
             b done clear
  C)
             c done clear
  D)
             d done clear
  View Solution play_arrow

• question_answer8)
    In a copper voltameter, mass deposited in 6 minutes is m gram. If the current-time graph for the voltameter is as shown here, then the E.C.E of the copper is
  A)
             m / 5   done clear
  B)
             m / 300 done clear
  C)
             5 m done clear
  D)
             m / 18000 done clear
  View Solution play_arrow

• question_answer9)
  Battery shown in figure has e.m.f. E and internal resistance r. Current in the circuit can be varied by sliding the contact J. If at any instant current flowing through the circuit is I, potential difference between terminals of the cell is V, thermal power generated in the cell is equal to h fraction of total electrical power generated in it.; then which of the following graph is correct
  A)
                                    done clear
  B)
  done clear
  C)
                                          done clear
  D)
             Both (a) and (b) are correct done clear
  View Solution play_arrow