Which of the following quantities do not change when a resistor connected to a battery is heated due to the current?
  • A
    drift speed
  • B
    resistivity
  • C
    resistance
  • D
    number of free electrons
Easy
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.*

Similar Questions

  • 1
    Find current through the branch $ad$ of the circuit shown in figure. :-............. $A$
    View Solution
  • 2
    A null point is found at $200\,cm$ in potentiometer when cell in secondary circuit is shunted by $5\,\Omega$. When a resistance of $15\,\Omega$ is used for shunting null point moves to $300\,cm$. The internal resistance of the cell is $..............\,\Omega$.
    View Solution
  • 3
    The resistance of a conductor at $15^{\circ} {C}$ is $16\, \Omega$ and at $100\, {C}$ is $20\, \Omega$. What will be the temperature coefficient of resistance of the conductor?
    View Solution
  • 4
    In order to determine the $e.m.f.$ of a storage battery it was connected in series with a standard cell in a certain circuit and a current $I_1$ was obtained. When the battery is connected to the same circuit opposite to the standard cell a current $I_2$ flow in the external circuit from the positive pole of the storage battery was obtained. What is the $e.m.f$. $\varepsilon_1$ of the storage battery? The $e.m.f$. of the standard cell is $\varepsilon_2$.
    View Solution
  • 5
    In the adjoining circuit diagram each resistance is of $10$ $\Omega$. The current in the arm $AD$ will be
    View Solution
  • 6
    Following figure shows cross-sections through three long conductors of the same length and material, with square cross-section of edge lengths as shown. Conductor $B$ will fit snugly within conductor $A$, and conductor $C$ will fit snugly within conductor $B$. Relationship between their end to end resistance is
    View Solution
  • 7
    Incandescent bulbs are designed by keeping in mind that the resistance of their filament increases with the increase in temperature. If at room temperature, $100 \mathrm{~W}, 60 \mathrm{~W}$ and $40 \mathrm{~W}$ bulbs have filament resistances $\mathrm{R}_{100}, \mathrm{R}_{60}$ and $\mathrm{R}_{40}$, respectively, the relation between these resistances is
    View Solution
  • 8
    Two resistors having equal resistances are joined in series and a current is passed through the combination. Neglect any variation in resistance as the temperature changes. In a given time interval
    View Solution
  • 9
    Three resistances of magnitude $2$, $3$ and $5$ $ohm$ are connected in parallel to a battery of $10\, volts$ and of negligible resistance. The potential difference across $3\,\Omega $ resistance will be ............... $volts$
    View Solution
  • 10
    In the circuit, the potential difference across $PQ$ will be nearest to .............. $V$
    View Solution