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A resistor is connected across a 50 V source. The current in the resistor if the colour code is red, orange, silver is-
- a)21.4 mA
- b)2 mA
- c)2.2 mA
- d)214 mA
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A resistor is connected across a 50 V source. The current in the resis...
Because the resistance code is Red, Orange, Orange, Silver.
Hence, according to the colour coding
Red and Orange = Digits
Orange = Multiplier
Silver = Tolerance
Most Upvoted Answer
A resistor is connected across a 50 V source. The current in the resis...
Because the resistance code is Red, Orange, Orange, Silver.
Hence, according to the colour coding
Red and Orange = Digits
Orange = Multiplier
Silver = Tolerance
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Community Answer
A resistor is connected across a 50 V source. The current in the resis...
Given data:
Voltage (V) = 50 V
Colour code of resistor = Red, Orange, Silver
To find:
Current (I) in the resistor
Solution:
The colour code of the resistor specifies its resistance value. The colour code for resistance is given as follows:
First band - First digit
Second band - Second digit
Third band - Multiplier
Fourth band - Tolerance
In this case, the first band is red, which represents the digit 2. The second band is orange, which represents the digit 3. The third band is silver, which represents a multiplier of 0.01.
Resistance (R) of the resistor can be calculated using the following formula:
R = (digit 1 * 10 + digit 2) * multiplier
Substituting the values, we get:
R = (2 * 10 + 3) * 0.01
R = 0.23 Ω
Using Ohm's law, the current (I) can be calculated as:
I = V / R
Substituting the values, we get:
I = 50 / 0.23
I = 217.39 mA
I ≈ 2.2 mA
Therefore, the current in the resistor if the colour code is red, orange, silver is 2.2 mA (option C).
Note: The tolerance band is not used in this calculation.
Voltage (V) = 50 V
Colour code of resistor = Red, Orange, Silver
To find:
Current (I) in the resistor
Solution:
The colour code of the resistor specifies its resistance value. The colour code for resistance is given as follows:
First band - First digit
Second band - Second digit
Third band - Multiplier
Fourth band - Tolerance
In this case, the first band is red, which represents the digit 2. The second band is orange, which represents the digit 3. The third band is silver, which represents a multiplier of 0.01.
Resistance (R) of the resistor can be calculated using the following formula:
R = (digit 1 * 10 + digit 2) * multiplier
Substituting the values, we get:
R = (2 * 10 + 3) * 0.01
R = 0.23 Ω
Using Ohm's law, the current (I) can be calculated as:
I = V / R
Substituting the values, we get:
I = 50 / 0.23
I = 217.39 mA
I ≈ 2.2 mA
Therefore, the current in the resistor if the colour code is red, orange, silver is 2.2 mA (option C).
Note: The tolerance band is not used in this calculation.
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A resistor is connected across a 50 V source. The current in the resistor if the colour code is red, orange, silver is-a)21.4 mAb)2 mAc)2.2 mAd)214 mACorrect answer is option 'C'. Can you explain this answer?
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