Do questions 5 >>>Question 511R₁12E2-B(a) the resistance of the wire,(b) the current,(c) the power dissipated in the wire.R₂13AThe circuit above consists of 3 different imperfect batteries connected to two equal resistors.Find the currents I1, I2 and 13 leaving the batteries, and the potential difference from A to B,VAB.EzTake E₁ = 6 V, r1= 122, E2 = 10 V, r2 = 292, E3 = 12 V, r3= 302 and R1 = R2= 2002.Question 6The circuit alongside shows a 100 µF capacitor connected in parallel with a 1509 resistorand a 3.0 V battery. The switch, which was initially closed, is opened at time t = 0. What isthe current flowing through the resistor immediately after the switch is opened? After howlong will the current have dropped to 1% of this value? What is the energy dissipated in theresistor during the complete discharge?Question 7Copper has a resistivity of 1.7×10-80 m. A wire of diameter 1.5 mm and length 25 m is connectedacross a potential difference of 50 V. Calculate:(i) delivered to the load resistor;(ii) dissipated inside the battery;(iii) produced in total by the battery?Question 8A platinum resistance thermometer measures temperature by the change in the electricalresistance of a platinum wire. The coefficient of resistivity for platinum is 3.92×10-³ °C-¹. At atemperature of 20.0°C, the thermometer has a resistance of 50.0 0; when immersed in a cruciblecontaining melting indium its resistance is 76.8. What is the melting point of indium?Question 9An electric fire has a heating element rated at 1 kW when operating at 230 V.(a) what is its resistance?(b) what will be the power dissipation if the mains voltage drops to 210 V, assuming that theelement obeys Ohm's Law?Question 10Given that copper has a resistivity of 1.7x10-8 m and has 8.5×1028 free electrons per cubic metre,calculate the mean time between collisions between a conduction electron and the ionic latticeaccording to the Drude model.If the copper is exposed to an electric field of 0.5 V m¹, what average drift velocity will the electronachieve? (The mass of an electron is 9.11×10-³¹ kg.)Question 11A battery has an emf of 1.60 V and an internal resistance of 0.150. It is connected to a loadresistance of 3.00.(a) What is the terminal voltage of the battery?(b) How much power is

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Question 5 11 R₁ 12 E2- B R₂ 13 Ez A The circuit above consists of 3 different imperfect batteries connected to two equal resistors. Find the currents I1, I2 and 13 leaving the batteries, and the potential difference from A to B, VAB. Take E₁ = 6 V, r1= 192, E2 = 10 V, r2 = 20, E3= 12 V, r3= 392 and R1 = R2= 2002.