MCQOPTIONS
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MCQOPTIONS
| 1. |
The charge flowing through a resistance R varies with time t as \[Q=at-b{{t}^{2}}.\] The total heat produced in R by the time current ceases is |
| A. | \[{{a}^{3}}R/6b\] |
| B. | \[{{a}^{3}}R/3b\] |
| C. | \[\frac{{{a}^{3}}R}{2b}\] |
| D. | \[\frac{{{a}^{3}}R}{b}\] |
| Answer» B. \[{{a}^{3}}R/3b\] | |