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
विकल्प
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
If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ______ terminal of the battery.
Electroplating is an example for ______.
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory
When electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates
The object to be electroplated is taken as ______ electrode.
Paheli set up an experiment using liquid A in the beaker as shown in the following figure. She observed that the bulb glows. Then she replaced the liquid A by another liquid B. This time the bulb did not glow. Boojho suggested replacing the bulb by an LED. They observed that the LED glows. Explain.
Explain the following:
Short circuit.
______ is used in the extraction and purification of metals.
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 |
What are anodes and cathodes?
