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The tolerance level of a resistor with the colour code red, blue, orange, gold is
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Important Questions on Current Electricity
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A carbon resistor is color coded with green, black, red and silver respectively. The maximum current which can be passed through this resistor is:
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A carbon resistance has the following colour code. What is the value of the resistance?
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A resistance is shown in the figure. Its value and tolerance are given respectively by:
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The three colours in a carbon resistor are red, black and orange. If the fourth colour is absent, then the value of tolerance of the resistor is
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The colour code for a carbon resistor of resistance is
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The colour code of resistor is brown, violet, yellow and gold. Then the value of the resistance is
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A carbon resistor of is to be marked with rings of different colours for its identification. The colour code sequence will be:
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The solids which have the negative temperature coefficient of resistance are:
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The colour code for a resistance of is _____
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Two resistances A and B have colour codes orange, blue, white and brown, red, green respectively. Then ratio of their resistances is
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The temperature dependence of resistance of and undoped in the temperature range is best described by
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A resistor has certain colour code. If one replaced the red colour by green in the code, the new resistance will be:
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The conductivity of semiconductor increases with increase in temperature because
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The order of coloured rings in a carbon resistor is red, yellow, blue and silver. The resistance of the carbon resistor is :
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Consider four conducing materials copper, tungsten, mercury and aluminum with resistivity and respectively. Then :
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A carbon resistor of is to be marked with rings of different colours for its identification. The colour code sequence will be
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The resistance of a wire at is and is . At which temperature, its resistance will be
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The colour coding on a carbon resistor is shown in the given figure. The resistance value of the given resistor is:
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The colour code of a resistance is given below
The values of resistance and tolerance, respectively, are
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The Wheatstone bridge shown in the figure below, gets balanced when the carbon resistor used as has the colour code (orange, red, brown). The resistors and are and , respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as , would be
