Part B d] Investigate the resistance of a light bulb. 1-; Measure the resistance of the light bulb using a multimeter. R: 1\".) Use the circuit above to nd the resistance of the light bulb for 5 different currents. You can change the current by moving the slider from X to Y. You can calculate the resistance using the formula R = V r' I. Record your results in the table below. Current {I} r' A Resistance (R) (= V) Potenlial Difference (V) IV I Q iiiJWl'lte a conclusion to explain the differences in the values obtained using the two methods for measuring resistance of the light bulb. c) Look at the light bulb with a hand lens. Estimate values for L and d for the lament wire. Use your estimated values and the resistivity of tungsten to calculate the maximum temperature of the lament wire. Part C: Discussion Write an illustrated account to explain the results of the three experiments in atomic terms (300 words). When you have completed your assignment check that you have met the assessment criteria: 1.2. Explain the heating effect of an electric current. 2.1. Investigate the factors that affect electrical resistance and draw conclusions. 2.2. Explain qualitatively the effect of temperature on electrical resistance