Q4: Given that R=8x10³ C=7x10-³F and E=2 V then find the charge on the capacitor after 1sec? E R W 1.4 x10-²(1-e-1/56)C 1.3x102(1-e-1/14)C 1.2x10-2 (1-e-1/56)C 1.1x102(1-e1/14) C C Q5: A transformer has 800 primary turns and 100 secondary turns. To obtain 40 V from the secondary winding the voltage applied to the primary winding must be: a) 5 V b) 320 V c) 2.5 V d) 20 V
Q4: Given that R=8x10³ C=7x10-³F and E=2 V then find the charge on the capacitor after 1sec? E R W 1.4 x10-²(1-e-1/56)C 1.3x102(1-e-1/14)C 1.2x10-2 (1-e-1/56)C 1.1x102(1-e1/14) C C Q5: A transformer has 800 primary turns and 100 secondary turns. To obtain 40 V from the secondary winding the voltage applied to the primary winding must be: a) 5 V b) 320 V c) 2.5 V d) 20 V
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Transcribed Image Text:Q4: Given that R=8x10³ C=7x10-³F and E=2 V then find the charge on the capacitor
after 1sec?
E
R
W
1.4 x10-² (1-e-¹/56) C
1.3x102(1-e1/14)C
1.2x10-2 (1-e-1/56)C
1.1x10 (1-e¹/14)C
Q5: A transformer has 800 primary turns and 100 secondary turns. To obtain 40 V
from the secondary winding the voltage applied to the primary winding must be:
a) 5 V
b)
320 V
c)
2.5 V
d)
20 V
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