Electrical Engineering - Circuit Theorems and Conversions - Discussion

Discussion :: Circuit Theorems and Conversions - General Questions (Q.No.2)

2.

A certain current source has the values IS = 4 µA and RS = 1.2 M. The values for an equivalent voltage source are

 [A]. 4.8 V, 1.2 M [B]. 1 V, 1.2 M [C]. 4.8 V, 4.8 M [D]. 4.8 V, 1.2 M

Explanation:

No answer description available for this question.

 Janmejay said: (May 16, 2011) v(s)=i(s)*r(s)

 Bharat said: (Feb 11, 2012) As a ohms law is V=IR we will ge the voltage as 4.8v option 4 is right.

 Sabari said: (Apr 23, 2013) V = IR. V = (4*10^-6)(1.2*10^6). V = (4*1.2)=4.8V.

 Naveed said: (Oct 15, 2013) @Sabari @Bharat @Janmejay your procedure is not correct. P = VI = V^2/R = I^2*R. P = 4.8^2/1.2*10^6 = 1.92*10^-5. So option D is correct.

 Fan said: (Dec 31, 2014) @Naveed. What's power got to do with the problem?

 Mounika Pati said: (Jan 31, 2015) As we know from Ohms Law, V = IR. = (4*10^-6)*(1.2*10^6). = 4.8v. ''Voltage = 4.8v''.

 Tinnu said: (Feb 6, 2015) There are two options with 4.8v so by calculating power we can get right option.

 Zaim said: (Jul 20, 2015) How to calculate the resistance of voltage source?

 Yugal Kishor Bairagi said: (Sep 6, 2015) Given data:- I = 4 micro Amps. R = 1.2 Mega Ohms. V = IR. So, V = 4*1.2 = 4.8 V. (where micro & mega is cancel out, because micro means 10 the power minus -6 & mega means 10 the power plus +6).

 Sana said: (Jun 22, 2017) I = 4 micro Amps. R = 1.2 Mega Ohms. V = IR. So, V = 4*1.2 = 4.8 V. in options 2nd is the resistance so, by using this vtg we can find r=4.8/4*10^-6=1.2 Mohm.

 Kusal said: (Dec 21, 2017) This is a case. Convert current source to voltage source. So voltage is 4.8 & resistance is no change.

 Ramza said: (Nov 14, 2018) Apply Ohm's law to find voltage. And there will be no change in resistance. V=IR, V=4.8V, R=1.2Mohms.

 Hidden Tesla said: (Oct 24, 2019) Using Source Conversion Theorems. Current Source Converted to Voltage Source - Vs = Is*Rs=4*1.2 = 4.8V. Now Rs = 1.2Mohm Connected Series with Voltage source.