Electrical Engineering - Inductors - Discussion
Discussion Forum : Inductors - General Questions (Q.No. 5)
5.
The voltage across a coil when di/dt = 20 mA/
s and L = 8 H is
s and L = 8 H isDiscussion:
13 comments Page 1 of 2.
Deepika said:
1 decade ago
Given inductance = 8*10^-6henry. { Henry symbol is H }
and also di/dt means given change of current 20*10^-3amperes.
Current is measured in amperes. Inductance is measured in henry.
To find the voltage L *di/dt = 8*10^-6*20*10^-3/10^-6
= 160*10^-3
= 160mv
voltage is measured in volts.
and also di/dt means given change of current 20*10^-3amperes.
Current is measured in amperes. Inductance is measured in henry.
To find the voltage L *di/dt = 8*10^-6*20*10^-3/10^-6
= 160*10^-3
= 160mv
voltage is measured in volts.
Krushnapada said:
8 years ago
We all know that the formula of the inductor for finding voltage. Is Ldi/it.
So data given,
L = 8*10^-6 H.
di/DT=20*10^-3/10^-6.
So according to formula.
V = 8 * 10^-6 * 20 * 10^-3/10^-6.
= 160*10^-3v.
So data given,
L = 8*10^-6 H.
di/DT=20*10^-3/10^-6.
So according to formula.
V = 8 * 10^-6 * 20 * 10^-3/10^-6.
= 160*10^-3v.
(2)
Pramod said:
10 years ago
Given data,
Rate of change of current = 20 mA/micro sec.
Inductor = 8 microhenry.
From the formula:
Voltage across inductor (V) = L * Rate of change of current,
So, V = 8*20 = 160 mv.
Rate of change of current = 20 mA/micro sec.
Inductor = 8 microhenry.
From the formula:
Voltage across inductor (V) = L * Rate of change of current,
So, V = 8*20 = 160 mv.
(1)
Deepika said:
1 decade ago
Given change of current di/dt = 20*10^-3amperes./10^-6 s
Inductance = 8*10^-6henry.
To find voltage = L*di/dt = 8*10^-6*20*10^-3/10^-6
= 160*10^-3 v.
= 160 milli volts.
Inductance = 8*10^-6henry.
To find voltage = L*di/dt = 8*10^-6*20*10^-3/10^-6
= 160*10^-3 v.
= 160 milli volts.
Pavan said:
10 years ago
Inductor stores energy in the form of electromagnetic field.
Output Voltage can be varied when current through it will change with time t. So v = L*di/dt.
Output Voltage can be varied when current through it will change with time t. So v = L*di/dt.
Engr.talha said:
5 years ago
Why we are dividing it by 10^-6? Please explain about it.
(2)
Stuti said:
10 years ago
V = LDI/DT.
= 8*10^-6*20*10^-3/10^-6.
= 160*10^-3v.
= 8*10^-6*20*10^-3/10^-6.
= 160*10^-3v.
Ram said:
7 years ago
v = Ldi/dt.
= 8 * 20.
= 160V.
= 8 * 20.
= 160V.
Dinesh said:
9 years ago
Helpful solution, Thank you all.
Priyanka said:
7 years ago
V = Ldi/dt,
= 8 * 20.
= 160V.
= 8 * 20.
= 160V.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers