A piece of paper wrapped tightly on a wooden rod is found to get charged quickly when held over a flame compared to similar piece when wrapped on a brass rod This is because .

Explanation

Wood is a bad conductor of heat and is unable to conduct away the heat. So the paper quickly reaches its ignition temperature and is charred. On the other hand, brass is a good conductor of heat and conducts away the heat quickly. So the paper does not reach its ignition point easily.