7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

2 Answers  

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what is high - pot test. what's its use?????

0 Answers  

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WHY MOSTLY BATTERY VOLTAGE IS IN MULIPLE OF 2 LIKE 2V,4V,8V,16V,18V....

2 Answers   Exide,

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Why the colour of insulator is always is chocolate in colour?

1 Answers   MRF,

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what is different between synchronous & asynchronous motors

3 Answers  

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What will be electrical cost per sqft for IT building (basebuild and fitout)and for residential township?

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what is difference between vaccum circuit breaker and air circuit breaker?

2 Answers  

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In brushless excitation system how generator field current is measure even if the slip rings are absent?

3 Answers   Adani,

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explain harmonics in simple words..........

3 Answers   HMT,

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how can we Increase the Value Of Frequency in electric circuits

0 Answers   HMK,

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in dc machines in the armature nature of power is ac but why we take rasistance instead of impedance?

1 Answers  

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why Lightening Arrester Probe sharp at Top of telecom tower.

0 Answers   Reliance Jio,

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