Consider the circuit shown in the figure below, where R₁ = 8.00 02, R₂ = 5.00 02, and € = 12.0 V. 10.0 Ω ww 2.00 Ω W 5.00 Ω www E R₂ www R₁ www (a) Find the voltage (in V) across R₁. X Find the equivalent resistance in the circuit by applying the equations for resistances in series and parallel, and use your result and Ohm's law to determine the total current in the circuit. You can use this value to calculate the potential drop across the 2.00- resistor, and from this, find the voltage across R₁. V (b) Find the current (in A) in R₁. X Use Ohm's law and your result from part (a) to determine the current through R₁. A
The ammeter shown in the figure below reads 2.60 A. Find the following. 15.0 V + (a) current I, (in A) 0.286 (b) current I₂ (in A) 2.314 (c) emf & (in volts) 17.63 7.00 £2 www 5.00 Ω ww www 2.00 Ω ✓ A ✓ A + A E (d) What If? For what value of & (in volts) will the current in the ammeter read 1.47 A? X V
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