How much current will an electric bulb of resistance $1100 \ \Omega$ draw from a $220 \ V$ source? If a heater of resistance $100 \ \Omega$ is connected to the same source instead of the bulb,calculate the current drawn by the heater.
(0.2 A, 2.2 A) According to Ohm's law,the current $I$ is given by the formula $I = \frac{V}{R}$.
For the electric bulb:
Given,$V = 220 \ V$ and $R = 1100 \ \Omega$.
$I = \frac{220}{1100} = 0.2 \ A$.
For the electric heater:
Given,$V = 220 \ V$ and $R = 100 \ \Omega$.
$I = \frac{220}{100} = 2.2 \ A$.
For the electric bulb:
Given,$V = 220 \ V$ and $R = 1100 \ \Omega$.
$I = \frac{220}{1100} = 0.2 \ A$.
For the electric heater:
Given,$V = 220 \ V$ and $R = 100 \ \Omega$.
$I = \frac{220}{100} = 2.2 \ A$.
Explore More
Similar Questions
The voltage-current variation of two metallic wires $X$ and $Y$ at constant temperature are shown below. Assuming that the wires have the same length and the same diameter, explain which of the two wires will have larger resistivity.
Medium
View SolutionStudy the $V - I$ graph for a resistor as shown in the figure and prepare a table showing the values of $I$ (in amperes) corresponding to four different values of $V$ (in volts). Find the value of current $I$ (amperes) for $V=10$ volts. How can we determine the resistance of the resistor from this graph?
Medium
View SolutionWhat is meant by resistance?
Easy
View SolutionThe $SI$ unit of resistivity of the material is $......$
Easy
View SolutionWhat is the unit of resistance?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo