Question and Answers Forum
Electric Current and CircuitsQuestion and Answers: Page 2
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Question and Answers Forum |
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Electric Current and CircuitsQuestion and Answers: Page 2 |
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| Why is the ammeter always connected in series and the voltmeter in parallel? |
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| (1) A cell has an Emf of 2.5 V .It cannot be balanced by a potentiometer of lenght 100.0 cm when a driver cell of of 2.0V is connected to it. which of the following best explains why there is no balance lenght? A. The current in the wire is too low. B. the balance lenght is too small C. the emf of the cell is too low. D. The voltae accross the wire is too low. please site a little explanation. |
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| Physic A generator(E=230V ; r≠0) supplies two receivers connected in parallel (E′_1 =180V ; r′_1 =5Ω and E′_2 =0V ;r′_2 =150Ω) 1. calculate the currents I_(1 ) and I_(2 ) passing through each receptor. 2.calculate the total delivred cur− rent I by the generator. which type is the second receiptor? Thank you for helping me sirs! For more details, E represents the electromotive force of generator ; r represents his internal resistance. E′ and r′ caracterise receiptors. |
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| Hello please how can we calculate the yield in % of ohmic conductor in actif circuit with Battery( with his resistance) and a motor( with his resistance) knowing theirs caracteristics and the intensity? I need a formula. |
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