@⇒ Resistance and Ohm's law Numerical - Important Numerical ⇒ Electrical Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	What is the voltage across the 10 Ω resistor in Fig.
A.	31.3 V [Wrong Answer]
B.	33.5 V [Wrong Answer]
C.	33.1 V [Wrong Answer]
D.	33.3 V [Correct Answer]
View Answer 24 -18 Explanation:- Answer : D Discuss it below : Voltage across 10 Ω = V₁₀ = 50 x 10/(10+5) = 500/15 = 33.3 V Click here for more comments


Q2.	Find the voltage between A and B in a voltage divider network shown in Fig.
A.	90 V [Correct Answer]
B.	80 V [Wrong Answer]
C.	70 V [Wrong Answer]
D.	60 V [Wrong Answer]
View Answer 15 -7 Explanation:- Answer : A Discuss it below : Voltage across 9 kΩ = V₉ = V_AB = 100 x 9/10 = 90 V Click here for more comments


Q3.	Determine the total amount of power in the series circuit in Fig.
A.	240 W [Wrong Answer]
B.	230 W [Wrong Answer]
C.	250 W [Correct Answer]
D.	260 W [Wrong Answer]
View Answer 4 0 Explanation:- Answer : C Discuss it below : Total resistance = 5 + 2 + 1 + 2 = 10 Ω P = V²/R = (50)²/10 = 250 W Check We find the power absorbed by each resistor current = 50/10 = 5 A P₅ = (5)² X 5 = 125 W P₂ = (5)² X 2 = 50 W P₁ = (5)² x 1 = 25 W P₂ = (5)² X 2 = 50 W The sum of these powers gives the total power supplied by the source P_s = 250 W. Click here for more comments

Q4.

Determine the parallel resistance between points A and B of the circuit shown in Fig.

3.8 Ω

4.8 Ω

2.8 Ω

5.8 Ω

View Answer 6 -1


Q5.	Can you tell us the resistance digit color code from 1 to 9, along with 0.1 to 0.01 multiplier code and from ±0.5% to ±2% tolerance code ?
View Answer 4 -2 Explanation:- Answer : Discuss it below : Easy way to remember, learn following line and capital alphabets are the first alphabet of color code B B ROY was Great Britain Very Good Wife DIGIT - COLOR 0 - Black 1 - Brown 2 - Red 3 - Orange 4 - Yellow 5 - Green 6 - Blue 7 - Violet 8 - Gray 9 - White 0.1 - Gold 0.01 - Silver ±2% - Red ±1% - Brown ±0.5% - Green ±0.25% - Blue ±0.1% - Violet Remember :- First band-1st digit Second band-2nd digit Third band-3rd digit Fourth band-multiplier(number of zeros following 3rd digit) Fifth band-tolerance Click here for more comments

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