InterviewSolution
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InterviewSolution
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Assertion: `AC` is more dangerous than `DC` Reason: Frequency of `AC` is dangerous for humban body.A. If both the assertion and reason are true and reason is a true explantion of the assertion.B. If both the assertion and reason are true but the reason is not true the correct explantion of the assertion.C. If the assertion is true but reason falseD. If both the assertion and reason are false. |
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Answer» Correct Answer - A The effect of `AC` on the body depends largely on the frequency. Low frequency currents of `50` to `60 Hz`(cycles/sec), which are commonly used, are usually more dangerous than high frequency currents and are `3` to `5` times more dangerous than `DC` of same voltage and amperage (current). The usual frequency of `50`cps (or `60` cps) is extermely dangerous as it corresponds to the fibrillation frequency of the myocardium. This results in ventricular fibrillation and instant death |
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