Answer:
V = 10581.59 V
Explanation:
To solve this problem, we have to take into the relation between the kinetic energy of an electron and the energy generated by the potential difference of an electric field. This relation is given by
where m is the mass of the electron, v is the velocity of the electron, e is the electric charge and V is the potential difference that accelerated the electron.
By taking V from the last expression we have:
where we have taken that
me = 9.1*10^(-31) Kg
e = -1.6*10^(-19) C
v = 6.1*10^(7)
I hope this is useful for you
Regards
'B' and 'C' are both true.
The resultant od the horizontal forces is the driving force from the engine (answer 4). Force C. is 30N, force D. is 20N, and therefore the horizontal resulting force is 30N - 20N = 10N. This is the force which makes the car driving forward, and therefore the driving force for the engine.
Answer:
Y
Explanation:
Y will produce the strongest magnetic force because the current intensity is medium and it has 50 turns in the wire. the number of turns will increase the force because the magnetic field will be more concentrated.
Have a great day :)
Answer:
B. They show the pattern made by the magnetic field lines around the
magnets
Explanation:
Using iron fillings, the pattern of the magnetic field lines around a bar magnet can be known.
Magnetic field lines are the line of force around a bar magnet.
- These iron fillings will trace the pattern of the magnetic field around the magnet.
- The domains of the iron fillings begins to align and orient with that of the prevailing magnetic field around.
- Those areas with the strongest force will attract more fillings and those far away will attract lesser fillings.