Electronics - Voltage and Current - Discussion

Discussion Forum : Voltage and Current - General Questions (Q.No. 2)
2.
If 60 J of energy are available for every 15 C of charge, what is the voltage?
4 V
60 V
15 V
0.25 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
162 comments Page 12 of 17.

ARUN said:   1 decade ago
Q = 15c, and E = 60j given,

P = V*I.
dE/dt = P = V*I.
I = dQ/dt.
E = V*Q.
V = E/Q = 60/15 = 4.

Vijaykumar said:   1 decade ago
Condition 1: Energy = Charge * Voltage.

Then,
Voltage = Energy by Charge.

Shahid said:   1 decade ago
Voltage is equal to work per unit charge.

V = w/q.
V = 60/15 = 4.

Saru said:   1 decade ago
The potential energy is a form of energy and the potential (and therefore voltage, when differences are taken) is defined as the potential energy (or potential energy difference) per unit charge, V=E/Q.

V = 60/15 = 4.

RADHIKA said:   1 decade ago
E = Q*V.
60 = 15*V.
V = 60/15.
V = 4V.

Hitesh virani said:   1 decade ago
60/15 = 4 Volts.

It is easier to understand if you say the charge flows during a time t, then the current is 15/t Amps. The power available is 60/t Watts. Watts = Volts * Amps
60/t = V * 15/t.

V = 4.

Bhagyashri kale said:   1 decade ago
V = voltage.
E = energy.
C = charge.

As we know that E=C*V.

V = E/c.
V = 60/15.
V = 4.

KOMAL SHARMA said:   1 decade ago
V = ENERGY/CHARGE.
V = 16/15.
V = 4.

Yogesh mahajan said:   1 decade ago
To find voltage.

Given Energy = 60j.

Charge = 15.

By formula V = E/C = 60/15 = 4.

Joshi Girish V. said:   1 decade ago
The Unit For The Measurement Of Charge Is Coulomb Which is Equal To 6.28*10^18 Electrons/Second.

The Unit For The Measurement Of Current Is Ampere Which Is Equal To 1 Coulomb/Second.

Therefore, Current = 15C/Second.

Electrical Energy = Power*Time = 60J (KWH).

Power = Current*Voltage.

Therefore, Electrical Energy = Current*Voltage*Time.

Therefore, 60J = 15C*Voltage*1 Second.

Therefore, Voltage = 60J/15C*1.

Therefore, Voltage = 4V*1.

Therefore, Voltage = 4V.


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