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P. 4514. The readings on the voltmeter and the ammeter connected to the circuit shown in the figure are 10 V and 200 mA, respectively when the switch is open. If the switch is closed the reading on the ammeter increases by 0.1 A, and the voltage across resistor R2 increases by 10 V.

a) What are the resistance values of the resistors?

b) What is the voltage of the voltage supply? c) What is the reading on the voltmeter when the switch is closed?

(4 points)

Deadline expired on 11 March 2013.

Google Translation (Sorry, the solution is published in Hungarian only.)

Megoldásvázlat. $\displaystyle a)$ $\displaystyle R_1=50~\Omega$ és $\displaystyle R_2=100~\Omega$.

$\displaystyle b)$ $\displaystyle U=30$ V.

$\displaystyle c)$ Nullát.

Statistics on problem P. 4514.
 85 students sent a solution. 4 points: 68 students. 3 points: 12 students. 2 points: 4 students. 0 point: 1 student.

• Problems in Physics of KöMaL, February 2013

•  Támogatóink: Morgan Stanley