Answer : Alternating.
Explanation :
The current flowing in a circuit can be of two types :
- Alternating current
- Direct current
Alternating current changes its direction periodically while direct current flows only in one direction.
The battery provides the potential difference between two terminals. The current supplied from a battery is an alternating current.
Hence, the current option is (a) " alternating ".
The force on a charged particle in a magnetic field is given by
the speed of the charged particle = 10842 m/s.
Explanation:
F= q V B sinθ
F=force=3.5 x 10⁻²N
q= charge= 8.4 x 10⁻⁴ C
B= magnetic field= 6.7 x 10⁻³ T
θ=35⁰
Thus the velocity is given by V=
V=(3.5 x 10⁻²)/[(8.4 x 10⁻⁴)(6.7 x 10⁻³)(sin35)]
V=10842 m/s
a=Δv/Δt=(v-v₀)/t=(46.1-18.5)/2.47=27.6/2.47=11.17 m/s²
d=v₀t+at²/2=18.5*2.47+11.17*2.47²/2=45.69+34.08=79.776 m
B!
This is because gravitational pull energy needs a height. The higher the height the higher the energy.