Question

'The magnetization curve of a DC generator has the following points, all taken at (1200) rpm: I; (Amperes) 1.5 1.25 05 EMF (Volts) 250 230 200 100 10 (a) If the tield current is adjusted at (1.25 A), what must be speed t0 generate (250 V)? (b) What is the ficld current t0 generate (200 V) at speed (1200 rp.m) on no-load?'

Name: the magnetization curve of a dc generator has the following points all taken at 1200 rpm i amperes 15 125 05 emf volts 250 230 200 100 10 a if the tield current is adjusted at 125 a what mus 51494
Uploaded: 2022-01-23T00:24:08-08:00
Duration: 7 min 24 s
Channel: Stanley Enemuo
Description: the magnetization curve of a dc generator has the following points all taken at 1200 rpm i amperes 15 125 05 emf volts 250 230 200 100 10 a if the tield current is adjusted at 125 a what mus 51494

          'The magnetization curve of a DC generator has the following points, all taken at (1200) rpm: I; (Amperes) 1.5 1.25 05 EMF (Volts) 250 230 200 100 10 (a) If the tield current is adjusted at (1.25 A), what must be speed t0 generate (250 V)? (b) What is the ficld current t0 generate (200 V) at speed (1200 rp.m) on no-load?'

Added by Martha E.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Stanley Enemuo

01/23/2022

Step 1

25 A. From the explanation, we know that the induced voltage is proportional to the speed and field current. Using the formula E1/N1 = E2/N2, where E1 = 230 V, N1 = 1200 rpm, E2 = 250 V, and N2 is the speed we want to find. Show more…

Show all steps

Thanks for your feedback!

'The magnetization curve of a DC generator has the following points, all taken at (1200) rpm: I; (Amperes) 1.5 1.25 05 EMF (Volts) 250 230 200 100 10 (a) If the tield current is adjusted at (1.25 A), what must be speed t0 generate (250 V)? (b) What is the ficld current t0 generate (200 V) at speed (1200 rp.m) on no-load?'