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- 12.0 N 4.00 N 5.00 N 6.00 N 8.00 N (a) Find the equivalent resistance between point a and b. (b) If a voltage of 49.4 V is applied between points a and b, find the current in each resistor. 12 Q A 6 Ω A 5Ω 4 Ω A 8 Ω AIf the 0.130 mm diameter tungsten filament in a light bulb is to have a resistance of 0.230 Ω at 20.0°C, how long should it be?Four identical filaments are connected together in series inside a decorative light bulb. Each filament has a resistance of 2.30 Ohms. When the very bright light is on, a current of 7.55 A passes through the bulb. What is the total power dissipated in Watts?
- Gold is the most ductile of all metals. For example, 2 gram of gold can be drawn into a wire 2.4 km long. The density of gold is 19.3 x 103 kg/m3, and its resistivity is 2.44 x 10-8 Vm. What is the resistance of such a wire at 20.0°C? 2984 Ohms 1356 Ohms 1356250 Ohms 565OhmsThe resistivity of axoplasm in a squid axon is 0.30 Ω · m. What is the length of a squid axon having a resistance of 2.2 × 105 Ω and a radius of 0.020 cm? (An axon, which is a long projection of a neuron cell, carries nerve impulses)