Download App
A group of $N$ cells whose $emf$ varies directly with the internal resistance as per the equation $E_N = 1.5\, r_N$ are connected as shown in the figure below. The current $I$ in the circuit is ........... $amp$
  • A$0.51$
  • B$5.1$
  • C$0.15$
  • D$1.5 $
Medium
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Download App

Similar Questions

  • 1
    The internal resistance of a primary cell is $4\, ohm$. It generates a current of $0.2\, amp$ in an external resistance of $21\, ohm$. The rate at which chemical energy is consumed in providing the current is .............. $J/s$
    View Solution
  • 2
    Five resistances are connected as shown in the figure. The effective resistance between the points $A$ and $B$ is
    View Solution
  • 3
    During an experiment with a metre bridge, the galvanometer shows a null point when the joceky is pressed at $40.0 \ cm$ using a standard resistance of $90 \ \Omega$, as shown in the figure. The least count of the scale used in the meter bridge is $1 \ mm$. The unknown resistance is:
    View Solution
  • 4
    Net resistance between $X$ and $Y$ is
    View Solution
  • 5
    A cylindrical conductor has uniform cross-section. Resistivity of its material increase linearly from left end to right end. If a constant current is flowing through it and at a section distance $x$ from left end, magnitude of electric field intensity is $E$, which of the following graphs is correct
    View Solution
  • 6
    The reading of voltmeter is :- .............. $V$
    View Solution
  • 7
    The charge flowing through a resistor $R$ varies with time $t$ as $Q = 3t -6t^2.$ The heat produced in $R$ till the current in it becomes zero is 
    View Solution
  • 8
    In $n_e$ and $v_d$ be the number of electrons and drift velocity in a semiconductor. When the temperature is increased
    View Solution
  • 9
    In a neon discharge tube $2.9 \times {10^{18}}\,N{e^ + }$ ions move to the right each second while $1.2 \times {10^{18}}$ electrons move to the left per second. Electron charge is $1.6 \times {10^{ - 19}}\,C$. The current in the discharge tube
    View Solution
  • 10
    In the circuit shown, $A$ and $V$ are ideal ammeter and voltmeter respectively. Reading of the voltmeter will be ............... $V$
    View Solution