Answer:
4s
Explanation:
when a bOdy rises into the air,the time it takes to reach a particular height is the same as the time it will take the body to fall from that height to the ground.
Redox reactions involve the gain or loss of C. electrons
The factors that can cause an induced current in a wire loop are number of turns of the wire, area of the wire and magnetic field strength.
<h3>
Induced emf</h3>
According to Faraday's law of electromagnetic induction, the rate of change of flux in a magnetic field is proportional to the flux through the magnetic field.
emf = dФ/dt
where;
- Ф is magnetic flux = BA (magnetic field and area of the coil)
emf = N(BA)/dt
where;
Thus, the factors that can cause an induced current in a wire loop are number of turns of the wire, area of the wire and magnetic field strength.
Learn more about electromagnetic induction here: brainly.com/question/26334813
Here is your answer
REASON :
We know that
Potential difference, V= W/q
where, W is work done
and, q is magnitude of charge
Given,
V= 9.0 v and W= 45 J
So,
using above relation, we get
9= 45/q
q= 45/9
q= 5 coulomb
HOPE IT IS USEFUL
