In the following circuit diagram,E = 4,V, r = | vedclass

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

Question

(D) By analyzing the circuit using node labeling,we can identify the potential points. Let the negative terminal of the battery be at potential $0\,V$

Vedclass · Accepted Answer

$1/4\, A$

Vedclass · Answer

(D) By analyzing the circuit using node labeling,we can identify the potential points. Let the negative terminal of the battery be at potential $0\,V$. The positive terminal is at $4\,V$. Following the circuit,the three resistors $R$ are connected in parallel between the two nodes created by the battery and the shorting wire. Thus,the equivalent resistance of the three resistors $R$ in parallel is $R_{eq}' = R/3 = 45/3 = 15\,\Omega$. The total resistance of the circuit including the internal resistance $r$ is $R_{total} = R_{eq}' + r = 15 + 1 = 16\,\Omega$. The current $I$ flowing through the ammeter is given by Ohm's law: $I = E / R_{total} = 4 / 16 = 1/4\, A$.

In the following circuit diagram,$E = 4\,V, r = 1\,\Omega$ and $R = 45\, \Omega$,then the reading of the ammeter $A$ will be

Similar Questions

When a current of $16 \, A$ is passed through a $NaCl$ cell for $10 \, min$,what mass of $Na$ (in $g$) is deposited?

Two bulbs of equal wattage,one having a carbon filament and the other having a tungsten filament,are connected in series to the mains. Then:

$A$ battery of $e.m.f.$ $E$ and internal resistance $r$ is connected to a variable resistor $R$ as shown in the figure. Which one of the following is true?

In the electric network shown,when no current flows through the $4\, \Omega$ resistor in the arm $EB$,the potential difference between the points $A$ and $D$ will be ............... $V$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module