Dr. Sunil Kushwaha Solutions for Chapter: Electricity, Exercise 10: Mock Test

Study the following circuit and answer the following questions:

$\left(ii\right)$How much current is following through $15 \mathrm{\Omega }$  resistors.

A bulb is rated at $200 \mathrm{V}-1000 \mathrm{W}$. What is its resistance? Five such bulbs lighted for $4$ hours. What is the electrical energy consumed? Calculate the cost, if the rate is $50$ paise per unit.

What is meant by saying that the potential difference between two points is $1$ volt? Name a device that helps to measure the potential difference across a conductor.

For the two circuits I and II shown below, the voltmeter readings would be:

To determine the equivalent resistance of a series combination of two resistors $R_1$ and $R_2$, a student arranges the following set up:
Which of the following statements will be true for this circuit?

In the experiment studying the dependence of current $I$ on the potential difference $V$, three students plotted the following graphs between $V$ and $I$. The graph that is likely to be correct is/are:

In the experiment on finding the equivalent resistance of two resistors connected in series, three students connected the ammeter in their circuits in the three ways $\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ shown here.

Assuming their ammeters to be ideal, the ammeter correctly connected in:

In the electrical circuit shown in figure, the potential across $4\mathrm{\Omega }$resistor is: