A variable resistor (potentiometer) is placed in a circuit as s... | Filo
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The variable resistor R is connected in a circuit, as shown bel... | Filo
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A variable resistor R is connected across the terminals of a battery. FIGURE P32.44 shows the current in the circuit as R is varied. What are the emf and internal resistance of the battery? CAN'T COPY THE FIGURE | Numerade
A variable resistor R is connected across the terminals of a battery. …
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The variable resistor R is connected in a circuit, as shown bel... | Filo
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The variable resistor R is connected in a circuit, as shown bel... | Filo
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A variable resistor, called a potentiometer, is shown in Figure Pl.1. The resistance is varied by moving a wiper arm along a fixed resistance. The resistance from A to C is fixed, but the resistance from B to C varies with the position of the wiper arm. If it takes 10 tums to move the wiper arm from A to C, draw a block diagram of the potentiometer showing the input variable, the output variable, and (inside the block) the gain, which is a constant and is the amount by which the input is multipl
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