11. A voltmeter is composed of ammeter g and resistor R in series, as shown in the figure. If it is found that the reading of this voltmeter is always a little smaller than the accurate value in use, take 11. A voltmeter is composed of ammeter g and resistor R in series, as shown in the figure. If it is found that the reading of this voltmeter is smaller than the accurate value, which of the following measures can be adopted to improve it A. A resistor much smaller than R is connected in series with R B. A resistor much larger than R is connected in series with R C. Parallel a much smaller resistor to R D. Parallel a much larger resistor to R

11. A voltmeter is composed of ammeter g and resistor R in series, as shown in the figure. If it is found that the reading of this voltmeter is always a little smaller than the accurate value in use, take 11. A voltmeter is composed of ammeter g and resistor R in series, as shown in the figure. If it is found that the reading of this voltmeter is smaller than the accurate value, which of the following measures can be adopted to improve it A. A resistor much smaller than R is connected in series with R B. A resistor much larger than R is connected in series with R C. Parallel a much smaller resistor to R D. Parallel a much larger resistor to R

Because the voltmeter is composed of a galvanometer and a resistor in series, the indication of the voltmeter depends on the current passing through the galvanometer
At this time, if the reading is small, it means that I is small, so if the R tip is large, it means that R must be reduced, so parallel connection is selected
The total resistance of the parallel circuit depends on the small resistance, here it is only slightly larger, so it is OK to parallel a resistance larger than R
The answer is d
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