This is healthier. Food baked in an electric oven will be healthier than food baked in a more "natural" way such as charcoal. This is because the heating is more uniform and controllable, and it is not easy to produce harmful substances such as benzopyrene due to excessive local temperature. When baking food with charcoal, it is almost inevitable to produce harmful smoke (which will be absorbed by food).
The oven is a sealed electric appliance, which is used to bake food or dry products, but don't over-bake, eating too much brown is harmful to your health.