How to 转换 电气 current in amps (A) to voltage in volts (V).
You can 计算 volts from amps and watts or ohms, but you can't 转换 amps to volts since volt and amp units represent different quantities.
The voltage V in volts (V) is equal to the power P in watts (W), divided by the current I in amps (A):
V(V) = P(W) / I(A)
So
volt = watt / amp
or
V = W / A
求 the voltage supply of an electrical circuit that has power consumption of 45 watts and current flow of 3 amps
The voltage V is equal to 45 watts divided by 3 amps:
V = 45W / 3A = 15V
The voltage V in volts (V) is equal to the current I in amps (A), times the resistance R in ohms (Ω):
V(V) = I(A) × R(Ω)
So
volt = amp × ohm
or
V = A × Ω
求 the voltage supply of an electrical circuit that has current flow of 3 amps and resistance of 10 ohms
According to ohm's law the voltage V is equal to 3 amps times 10 ohms:
V = 3A × 10Ω = 30V
