Current $l$ versus time $t$ graph through a conductor is shown in the figure. Average current through the conductor in the interval $0$ to $15 \,s$ is ............ $A$
Medium
Download our app for free and get started
(d)
$\Delta q=$ Area $( l / t )$
$\Delta q=\frac{1}{2} \cdot 10 \times 15=75 \,C$
$i_{\text {avg }}=\frac{75}{15}=5 \,A$
Download our appand 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
- 1If a wire of resistance $R$ is melted and recasted to half of its length, then the new resistance of the wire will beView Solution
- 2Forty electric bulbs are connected in series across a $220\, V$ supply. After one bulb is fused, the remaining $39$ are connected again in series across the same supply. The illumination will beView Solution
- 3The resistances in the two arms of the meter bridge are $5 \,\Omega$ and $R \,\Omega$ respectively. When the resistance $R$ is shunted with an equal resistance, the new balance point is at $1.6\,l_1$. The resistance $R$ is .................. $\Omega$View Solution
- 4A potentiometer consists of two wires $AC$ and $CB$ of same material and of equal lengths but diameters in the ratio $3 : 1.$ Then the potential gradients on the two wires will be in the ratio :-View Solution
- 5In the circuit shown, the value of each resistance is $r$, then equivalent resistance of circuit between points $A$ and $B$ will beView Solution
- 6The effective resistance of a parallel connection that consists of four wires of equal length, equal area of cross-section and same material is $0.25\, \Omega$. What will be the effective resistance if they are connected in series ? (In $\Omega$)View Solution
- 7The figure shows a network of resistances in which the point $A$ is earthed. The current through the $4\,\Omega$ resistor isView Solution
- 8A cell whose e.m.f. is $2\, V$ and internal resistance is $0.1\,\Omega $, is connected with a resistance of $3.9\,\Omega $. The voltage across the cell terminal will be ................ $V$View Solution
- 9In a potentiometer wire experiment the $\mathrm{emf}$ of a battery in the primary circuit is $20\,V$ and its internal resistance is $5\,\Omega$ . There is a resistance box in series with the battery and the potentiometer wire, whose resistance can be varied from $120\,\Omega$ to $170\,\Omega$ . Resistance of the potentiometer wire is $75\,\Omega$ . The following potential differences can be measured using this potentiometer.View Solution
- 10You are given a resistance wire of length $50\, cm$ and a battery of negligible resistance. In which of the following cases is largest amount of heat generatedView Solution