|
List four uses of electroplating
|
|
0
|
14994
|
March 22, 2018
|
|
You are provided with a magnetic compass, an empty matchbox
|
|
0
|
2383
|
March 22, 2018
|
|
Observing that the bulb does not glow7 in the circuit shown below in A
|
|
0
|
689
|
March 22, 2018
|
|
Boojho made the circuit shown below. He wanted to observe what happens when an electric current is passed through water. But he forgot to add a few drops of lemon juice to water. Will it make any difference to his observations? Explain
|
|
0
|
4808
|
March 22, 2018
|
|
Observe the circuit given below
|
|
0
|
1590
|
March 22, 2018
|
|
An electric current is passed through a conducting solution. List four possible observations
|
|
0
|
1438
|
March 22, 2018
|
|
Observe the following circuit given below
|
|
0
|
618
|
March 22, 2018
|
|
In the circuit given below, Boojho observed that copper is deposited on the electrode
|
|
0
|
2960
|
March 22, 2018
|
|
Paheli had heard that rain water is as good as distilled water
|
|
0
|
4105
|
March 22, 2018
|
|
Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain
|
|
0
|
1307
|
March 22, 2018
|
|
The bulb does not glow in the setup shown in figure given alongside
|
|
0
|
640
|
March 22, 2018
|
|
Name three liquids, which when tested in the manner shown in figure given alongside, may cause the magnetic needle to deflect
|
|
0
|
1291
|
March 22, 2018
|
|
When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?
|
|
0
|
704
|
March 22, 2018
|
|
Observe the following circuits carefully. In which circuit will the bulb glow?
|
|
0
|
1742
|
March 22, 2018
|
|
Why is tin electroplated on iron to make cans used for storing food?
|
|
0
|
1909
|
March 22, 2018
|
|
Paheli wants to deposit silver on an iron spoon
|
|
0
|
7653
|
March 22, 2018
|
|
Paheli set up an experiment using liquid A in the beaker as shown in figure below
|
|
0
|
4970
|
March 22, 2018
|