Answer:
they are constantly bouncing everywhere and creating preasure
Explanation:
The transmission of a transparent piece of glass is very hard as the glass is fragile
Answer:

Explanation:
Potential difference between two points in constant electric field is given by the formula

here we know that

also we know that

now we have

now change in potential energy is given as



Answer:
DMM should be placed in the series combination with the circuit.
Explanation:
DMM is the digital multi meter. It can measure the voltage, current and resistance at a time.
- While measuring the current with the DMM you must be ensure that the DMM should be connected with the circuit in series combination. So that it will give the resultant current accurately.
- While measuring the voltage the observer should check the open probes.
Can you write in English so I can help you