Answer: I think the current produced by different types of magnets
Explanation:
Answer:
So speed of electron will be 
Explanation:
We have given potential difference V = 9.9 KV
Charge on electron 
So energy of electron 
This energy of electron will be equal to kinetic energy of electron
So 


So speed of electron will be 
Answer:
i think it is c if not im sorry if im wrong
Explanation: