Text Solution
Verified by Experts
The correct Answer is:
|
Topper's Solved these Questions
CURRENT ELECTRICITY
CHHAYA PUBLICATION|Exercise EXERCISE ( PROBLEM SET-II)|25 VideosCURRENT ELECTRICITY
CHHAYA PUBLICATION|Exercise EXERCISE ( HOT NUMERICAL PROBLEMS)|5 VideosCURRENT ELECTRICITY
CHHAYA PUBLICATION|Exercise EXERCISE ( SHORT ANSWER TYPE QUESTION-II)|7 VideosCOMMUNICATION STSTEM
CHHAYA PUBLICATION|Exercise CBSE SCANNER|28 VideosDIFFRACTION AND POLARISATION OF LIGHT
CHHAYA PUBLICATION|Exercise CBSE SCANNER|27 Videos
CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( PROBLEM SET-I)
- The current flowing through a wire depends on time as l=9t^2+4t+1. Wha...
06:01
|
- In a closed circuit,the current I(in ampere) at an instant of time t( ...
03:18
|
- What is the resistance of a relay coil which draws a current of 35 mA ...
03:23
|
- An electric kettle has a resistance of 160 Omega. What current will fl...
02:23
|
- IF a wire of length 1 m and diameter 1.5 mm, a potential difference of...
03:08
|
- The resistance of a uniform metallic wire is 1 Omega,its radius is 0.1...
04:19
|
- The lengths diameters and resistances of two wire are in the ratio of ...
06:10
|
- A wire of radius 5 mm is produced from a lump of copper. Another wire ...
04:59
|
- A metal wire has a resistances of 5 Omega . If its length is doubled b...
03:39
|
- A 1 m long metal wire has a cross sectional area of 0.1mm^2. Find out ...
03:40
|
- The lengths,resistances and resistivities of materials of two wires-ea...
05:49
|
- A nichrome wire of resisitivity 'rho' is stretched to make it 10% long...
05:15
|
- A wire with a resistances 5 Omega is drawn out so that its new length ...
03:55
|
- A wire of resistance 32 Omega is melted and drawn into a wire of half ...
04:22
|
- The resistance of a copper wire at 20^@C is 3 Omega and at 100^@ is 3....
03:43
|
- The temperature coefficient of resistance of copper is 42.5 times 10^-...
07:14
|
- A voltage of 30 V is applied across a carbon resistor with first,secon...
02:21
|
- The resistance of a platinum wire of platinum resistance thermometer a...
03:00
|
- A carbon resistor is marked in coloured bands in the sequence blue,gre...
02:55
|
- The sequence of bands market on a carbon resistor are yellow,red,orang...
02:54
|