Saturday, May 13, 2017
The diagram shows a circuit containing three resistors in parallel. The battery has e.m.f. 12 V and negligible internal resistance.
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Question 2 The diagram shows a circuit containing three resistors in parallel. The battery has e.m.f. 12 V and negligible i...
Monday, May 1, 2017
A uniform string is held between a fixed point P and a variable-frequency oscillator, as shown in Fig. 5.1.
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Question 1 A uniform string is held between a fixed point P and a variable-frequency oscillator, as shown in Fig. 5.1. Fig. 5....
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Monday, April 10, 2017
A student attempts to show the interference of light using two identical green LEDs.
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Question 1 A student attempts to show the interference of light using two identical green LEDs. Which statement explains why the e...
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