In an electrical circuit,two resistors of 2,O | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Given: Resistors $R_1 = 2\,\Omega$ and $R_2 = 4\,\Omega$ are connected in series.Voltage $V = 6\,V$.Time $t = 5\,s$.Total resistance $R_{eq} = R_1

Vedclass · Accepted Answer

$20$

Vedclass · Answer

(C) Given: Resistors $R_1 = 2\,\Omega$ and $R_2 = 4\,\Omega$ are connected in series.Voltage $V = 6\,V$.Time $t = 5\,s$.Total resistance $R_{eq} = R_1 + R_2 = 2\,\Omega + 4\,\Omega = 6\,\Omega$.The current $I$ flowing through the circuit is $I = V / R_{eq} = 6\,V / 6\,\Omega = 1\,A$.Since the resistors are in series,the same current $I = 1\,A$ flows through the $4\,\Omega$ resistor.The heat dissipated $H$ is given by the formula $H = I^2 R t$.Substituting the values: $H = (1)^2 	imes 4 	imes 5 = 1 	imes 4 	imes 5 = 20\,J$.

In an electrical circuit,two resistors of $2\,\Omega$ and $4\,\Omega$ respectively are connected in series to a $6\,V$ battery. The heat dissipated by the $4\,\Omega$ resistor in $5\,s$ will be ........ $J$.

Similar Questions

Three $V-I$ graphs are drawn individually for two resistors and their series combination. Out of $A, B, C$,which one represents the graph for the series combination of the other two? Give a reason for your answer.

In the process of electroplating a chromium coating onto an iron spoon,where should the chromium rod be connected?

How many watt-seconds are equal to $1$ unit of electrical energy?

$(a)$ For the circuit shown in the diagram,calculate:
$(i)$ The value of current through the $30\, \Omega$ resistor.
$(ii)$ The total resistance of the circuit.
$(b)$ Give two advantages of connecting electrical devices in parallel with a battery.

In the given circuit,calculate $(i)$ total resistance of the circuit,and (ii) current shown by the ammeter.

Vedclass Test Series

Exam Paper Generator

Online Exam Module