B: B
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A student measures, as accurately as possible, the length and internal diameter of a straight glass tube. The length …
Is mass a scalar or a vector, and is acceleration a scalar or a vector?
The diameter and the length of a thin wire, approximately 50 cm in length, are measured as precisely as possible. Wha…
A 12V battery is connected across a parallel arrangement of two resistors. What is the reading on the ammeter?
The circuit shown is set up and then all the switches are closed. One switch is now opened and all the lamps are lit.…
A lamp connected to a 12V supply converts energy at a rate of 36 W. How much energy will be converted in 10s?