Advertisements
Advertisements
प्रश्न
Boojho and Paheli performed experiments taking similar bulbs and cells but two different solutions A and B as shown in the following figure.
 |
 |
| Boojho's Experiment | Paheli's Experiment |
| (A) | (B) |
They found that the bulb in the setup A glows more brightly as compared to that of the setup B. You would conclude that
पर्याय
higher current is flowing through the circuit in setup A
higher current is flowing through the circuit in setup B
equal current is flowing through both the circuits
the current flowing through the circuits in the two setups cannot be compared in this manner.
Advertisements
उत्तर
higher current is flowing through the circuit in setup A
Explanation:
Bulb in the setup A glows more brightly because higher current is flowing through the circuit in setup A, as solution Also better conductor of electricity than that of B.
APPEARS IN
संबंधित प्रश्न
The passage of an electric current through a solution causes ______ effects.
The process that you saw in the image is used for the purification of copper. A thin plate of pure copper and a thick rod of impure copper are used as electrodes. Copper from impure rod is sought to be transferred to the thin copper plate. Which electrode should be attached to the positive terminal of the battery and why?
In an electrolyte the current is due to the flow of ______.
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory
The object to be electroplated is taken as ______ electrode.
Electroplating of ______ is done on objects like water taps and cycle bell to give them a shiny appearance.
In the circuit given as figure, Boojho observed that copper is deposited on the electrode connected to the negative terminal of the battery. Paheli tried to repeat the same experiment. But she could find only one copper plate. Therefore, she took a carbon rod as negative electrode. Will copper still be deposited on the carbon rod? Explain your answer.
A chemical reaction happens when electricity passes through various conducting liquids.
Match the following
| 1. | Anode | a. | Conducting solution |
| 2. | Cathode | b. | Positive terminal |
| 3. | Ions | c. | Negative terminal |
| 4. | Electrolyte | d. | Positively or negatively charged |
Name the process which shows the chemical effect of electric current?
