MCQOPTIONS
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| 1. |
A cathode emits \[1.8\times {{10}^{14}}\] electrons per second, when heated. When 400V is applied to anode all the emitted electrons reach the anode. The charge on electron is \[1.6\times {{10}^{-19}}C\]. The maximum anode current is [MP PMT 2004] |
| A. | \[2.7\mu A\] |
| B. | \[29\mu A\] |
| C. | \[72\mu A\] |
| D. | 29 mA |
| Answer» C. \[72\mu A\] | |