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?
Discussion:
162 comments Page 4 of 17.
Rafi said:
7 years ago
Here we should not take energy as magnetic or capacitive since it is not mentioned.
E=Pt and P=VI=V* (Q/t).
=>E=V*Q.
=>V=4---->answer.
E=Pt and P=VI=V* (Q/t).
=>E=V*Q.
=>V=4---->answer.
Aman said:
1 decade ago
Energy = qV.
Since electric field strength is E = F/q = V/d.
With V = voltage, d = distance between charged plates.
Fd = qV.
Energy = qv.
Since electric field strength is E = F/q = V/d.
With V = voltage, d = distance between charged plates.
Fd = qV.
Energy = qv.
Gunwant said:
9 years ago
E = I^2R
E = I * IR
E = I * V.
(V=E/I )
Joules=Coloumb * Volts.
(Volts=Joules/ Coloumb).
Here,
60 = 15 * Volts.
Volts = 60/15,
Volts = 4.
E = I * IR
E = I * V.
(V=E/I )
Joules=Coloumb * Volts.
(Volts=Joules/ Coloumb).
Here,
60 = 15 * Volts.
Volts = 60/15,
Volts = 4.
Agba samuel said:
9 years ago
E = qv, where E = energy, q = quantity of charge, v = voltage.
Make v the subject of the formular v = E/q.
So, v = 60/15 = 4v --> Ans.
Make v the subject of the formular v = E/q.
So, v = 60/15 = 4v --> Ans.
Ruchi Mishra said:
1 decade ago
I=Q/T &........1
P=V*I ,........2
On putting the value of I in equation 2.
P=V*Q/T
E=P*T
E=V*Q/T*T
E=V*Q
V=E/Q
V=60J/15Q
V=4V.
P=V*I ,........2
On putting the value of I in equation 2.
P=V*Q/T
E=P*T
E=V*Q/T*T
E=V*Q
V=E/Q
V=60J/15Q
V=4V.
Venugopal said:
1 decade ago
I=Q/T &........1
P=V*I ,........2
On putting the value of I in equation 2.
P=V*Q/T
E=P*T
E=V*Q/T*T
E=V*Q
V=E/Q
V=60J/15Q
V=4V.
P=V*I ,........2
On putting the value of I in equation 2.
P=V*Q/T
E=P*T
E=V*Q/T*T
E=V*Q
V=E/Q
V=60J/15Q
V=4V.
Dilshad chauham said:
1 decade ago
Given data
E=60 j , Q = 15.
we know that
Energy = charge*voltage.
Then,
Voltage = Energy/charge.
Voltage = 60/15.
V = 4v.
E=60 j , Q = 15.
we know that
Energy = charge*voltage.
Then,
Voltage = Energy/charge.
Voltage = 60/15.
V = 4v.
Pradeep kushwaha said:
1 decade ago
p=power=60
c=current=15
findout=v
we know that p=v*i so
v=p/i
v=60/15=4v
c=current=15
findout=v
we know that p=v*i so
v=p/i
v=60/15=4v
Arnold anand said:
1 decade ago
We know the current i=15
energy is 60 j,
hav to find the voltage?
v=energy/current
=60/15
=4V
energy is 60 j,
hav to find the voltage?
v=energy/current
=60/15
=4V
Brijesh rathod said:
1 decade ago
E=QV
V=E/Q
V=60/15
V=4
Where:-
E=energy measured in joules.
Q=charge measured in coulomb.
v=voltage measured in volt.
V=E/Q
V=60/15
V=4
Where:-
E=energy measured in joules.
Q=charge measured in coulomb.
v=voltage measured in volt.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers